DEVELOPING: Police are responding to reports of a shooting in Washington, D.C., and urging residents in the Cleveland Park and Van Ness areas to shelter in place.

There are at least three victims, police say. abcn.ws/3k5qSy8 MORE: Two men are in critical but stable condition, while the juvenile was hospitalized in stable condition with a minor gunshot wound, police said at a evening press briefing. abcn.ws/3v3GsR3

DEVELOPING: Six people shot in a terror attack in Tel Aviv, authorities say; injuries considered critical and serious. abcn.ws/3rcbKD7 MORE: Several other people at the scene were being treated for "stress symptoms," according to Magen David Adom, Israel's national emergency medical service. abcn.ws/3rcbKD7

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How can you keep the pain at the pump to a minimum? Here's what the experts say: abcn.ws/3CvJQXd ⛽ Change the way you drive ⛽

Most cars achieve optimal fuel economy around 55 mph. Driving too fast or too slow won't give you the most bang for your buck.

Read more: abcn.ws/3hTKIeI

BREAKING: Russian troops are firing at Ukraine's largest nuclear power plant, officials say. "Russian army is firing from all sides upon Zaporizhzhia NPP, the largest nuclear power plant in Europe," Ukraine's Minister of Foreign Affairs tweeted. abcn.ws/3IKiY7S LATEST: The International Atomic Energy Agency, the United Nations nuclear watchdog group, said "radiation levels and fire safety at the NPP is within the norm." The fire broke out at a training building outside the power plant, the IAEA said. abcn.ws/3sF3Cfl

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Families and friends embrace after fleeing Russia's continuing assault on Ukraine, crossing borders into Poland, Romania and elsewhere.

Read more: abcn.ws/3ppHZh6 A family reunites at the Medyka border crossing in Poland. abcn.ws/3ppHZh6

📸: Visar Kryeziu/AP

1. Vaccines are the best protection against omicron. abcn.ws/3dxdRdy 2. Travel remains 'pretty safe' if vaccinated. abcn.ws/3dxdRdy

JUST IN: The family of Emmett Till is expected to address the final report from the FBI and Justice Department's investigation into Till's 1955 murder at a press conference today. abcn.ws/3otgtzj NEW: In a report shared with the family of Emmett Till, the Justice Department said that its investigation had not found enough evidence to support a new federal prosecution in the 14-year-old’s murder. abcn.ws/3opODUt

DEVELOPING: Cannon House Office Building, a congressional office building in Washington, D.C., evacuated via underground routes due to suspicious vehicle, law enforcement sources say. abcn.ws/3D0bEmf MORE: The Capitol Police in a tweet called it "an active bomb threat investigation."

The FBI said it's responding. abcn.ws/2Ux8Dsh

U.S. troops have taken control of the airport in Kabul, as chaos continues after Afghanistan's president fled the country over the weekend and the Taliban seized control of the presidential palace. abcn.ws/3k1RteO The State Department and Pentagon issued a joint statement Sunday night saying they would "accelerate" evacuation flights for Afghans who served the U.S. mission and take over air traffic control at the airport. abcn.ws/3k1RteO

NEW: Reps. Suozzi, Jeffries, and Meeks of New York: "The time has come for Governor Andrew Cuomo to do the right thing for the people of New York State and resign.” abcn.ws/3yn8zKi NEW: New York City Mayor Bill de Blasio on Gov. Cuomo: "He must resign, and if he continues to resist and attack the investigators who did their jobs, he should be impeached immediately.” abcn.ws/3lwxfML

A "substantial number" of the building's residents "are originally from overseas," according to Florida Sen. Marco Rubio. abcn.ws/3jcynUQ The Foreign Ministry of Paraguay said six Paraguayan nationals were in the building and still missing: Sophia López-Moreira, the sister of the country's first lady; her husband, Luis Pettengill; their three children; and their nanny, Lady Luna Villalba. abcn.ws/3jbmWMZ

BREAKING: Nearly two-thirds of Americans (64%) are optimistic about the direction of the country as Pres. Joe Biden completes his first hundred days in office, per a new ABC News/Ipsos poll. abcn.ws/2Sm8aHZ JUST IN: 51% of Americans think Pres. Biden is compromising about the right amount with congressional GOP leaders on the most pressing issues, while two-thirds say GOP leaders are doing too little to compromise with Biden, new @ABC News/Ipsos poll finds. abcn.ws/2Sm8aHZ

BREAKING: FDA and CDC announce that they are calling for an immediate pause on the use of the single-dose Johnson & Johnson vaccine. abcn.ws/3dWZPSe MORE: Six cases were discovered in the United States of a rare and severe type of blood clot that developed about two weeks after the vaccine was administered in these patients. abcn.ws/3a6k8eN

DEVELOPING: Multiple people, including a police officer, reported shot at a high school in Knoxville, Tennessee, police say. abcn.ws/3a5Dgtm LATEST: The officer who was shot is in "good spirits" and says he'd "rather this happen to him than someone else," Knoxville Mayor Indya Kincannon tells ABC affiliate @6News. abcn.ws/3a5Dgtm

BREAKING: MLB moves this year's All-Star Game out of the Atlanta area following controversy generated by Georgia's restrictive new voting law. abcn.ws/3wjyQsi MORE: MLB commissioner Robert Manfred: “Major League Baseball fundamentally supports voting rights for all Americans and opposes restrictions to the ballot box...Fair access to voting continues to have our game’s unwavering support." abcn.ws/3wjyQsi

DEVELOPING: At least four people are dead, including a child, after shooting in Orange County, California, authorities say. abcn.ws/3whcgAA An officer was involved in the shooting, but "the situation has been stabilized and there is no threat to the public," police said in a statement. abcn.ws/3wevBSR

HAPPENING NOW: Groundhog Day celebration in Punxsutawney, Pennsylvania. pscp.tv/w/cufotTM3Mzg2… Neither snow nor rain nor heat nor pandemic stays Punxsutawney Phil from emerging from his burrow to forecast whether there will be six more weeks of winter or an early spring. abcn.ws/3pGhXnZ

Pres. Biden is out with a new strategy to turn around the pandemic, including an ambitious new vaccine effort.

But vaccinating America in record time amid a fast-moving pandemic is easier said than done.

Here are five things to know about the plan: abcn.ws/2LUBthS 1. There's been 1 million shots per day in recent days, and it's still not enough. abcn.ws/39YBJV9

BREAKING: 54% say Pres. Trump should be charged criminally with inciting a riot for having encouraged his supporters to march on the Capitol, new @ABC News/WaPo poll finds. abcn.ws/38HU35n BREAKING: Pres. Trump will leave office with a 38% job approval rating in new @ABC News/WaPo poll; 60% of the public disapproves, matching his peak disapproval in August 2018. abcn.ws/38HU35n

BREAKING: Pres. Trump tweets "Please support our Capitol Police and Law Enforcement...Stay peaceful!" as pro-Trump protesters breach U.S. Capitol. abcn.ws/3pOXRHI BREAKING: Rep. Jim Himes: "Police have asked us to get gas masks out as there has been tear gas used in the rotunda." abcn.ws/3pOXRHI

DEVELOPING: A parked recreational vehicle exploded in downtown Nashville, Tennessee, on Christmas morning, blowing out the windows of nearby buildings, fire officials say.

No injuries have been reported. abcn.ws/3aG0uqW JUST IN: A parked recreational vehicle exploded in downtown Nashville in what police believe was an "intentional act." abcn.ws/3nTHGIE