“Welcome Enaction of the National Security Law” appeared on the Hong Kong waterfront overnight 
One question among many about the national security law: will slogans like “End one-party dictatorship” remain legal? Leung Kwok-hung and other members of his League of Social Democrats hold up signs with that phrase and “Resist the national security law” in Wanchai this morning
Police have now corralled the group of about 20 and are searching some of them
Press taking shelter in a sudden rainstorm while police search the protesters
Protesters now heading toward Bauhinia Square, where the flag raising is happening
Another sign welcoming the national security law
The protest wrapped up outside the Harbourview with chants and the burning of a few signs
Extra edition from the Beijing-controlled Wen Wei Po on the national security law being handed out on the streets
Police in Causeway Bay raise the blue banner and the new purple banner specifically for alleged national security law violations
Police have cordoned off part of street where political groups had set up booths
Protester with an American flag. Not clear yet if this will be considered a violation of the new laws. Police just announced their first arrest under the laws, for possession of a Hong Kong independence flag
Small impromptu march now
Police have blocked off several parts of Causeway Bay. Some people are protesting but others appear to just be stuck. Here they’re facing off with three women
Police say they’ve arrested more than 70 people, including two for suspected national security law violations
