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
Thousands of people turned out in Trafalgar Square for a free screening of Oscar nominated film The Salesman
A baby dolphin has been spotted swimming in the Thames near Embankment pier.
The Olympic champion released a statement after a newspaper alleged his American coach may have broken anti-doping rules.