Three have been sprayed in the face with bleach outside a nightclub in Vauxhall in what police are treating as a homophobic hate crime. The attacks happened outside the Lightbox club at around 4am Sunday morning.
In the first attack, two men were sprayed with a substance - thought to be ammonia. A third man was attacked a short time later.
More top news
Campaigners have vowed to block the building of a £50 million Holocaust memorial that is due to be built next to Parliament.
The vulnerable 64-year old was last seen in Hoxton at 10.45pm on Thursday 8 December.
Two men have been jailed for a total of 18 years after they were stopped in a mini-cab bringing 10 revolvers into the capital.