Thread by @jseldin

NEW: #Russia continuing to flow in additional elements/troops into #Ukraine - headed to #Kyiv #Kharkhiv & #Kherson, per a senior defense official

More than 160 missiles have been launched so far

Some Russian soldiers also appear to have moved thru #Chernobyl area

"We still have no evidence of #Odessa right now being occupied or attacked" per a senior US defense official

#Russia|n troops - "They have gotten closer to #Kyiv" over past few hours, per a senior US defense official

Indications of active fighting in #Kharkhiv and arrival of more Russian airborne troops there

"We have seen indications that some #Ukrainian units are fighting back..." per a senior US defense official

Most #Russia|n forces surrounding #Ukraine still appear to be on stand-by & have not yet moved on #Ukraine, per a senior US defense official

Official cautions Russian op still in initial phases

"We continue to see ppl want to leave #Ukraine...transiting largely in vehicles" per a senior US defense official

Many still appear headed for #Poland, but no #s

Communications in #Ukraine still appear operational - "not clear exactly why" #Russia has not deployed full scope of its electronic warfare capabilities, per a senior US defense official

#Russia missile strikes appear focused around #Kyiv, #Kherson & in/around #Kharkhiv, per a senior US defense official

"The bulk tend to be around those 3 population centers" per the official, adding targets "by & large military targets...so far"