A German gay rights activist suffered life-threatening brain injuries from a beating in Belgrade, Serbia on Sept. 13.
Authorities said they arrested three people suspected of being involved in the attack on the man, who was attending a gay rights conference in Belgrade.
A spokesperson for an LGBT group in Europe said the attack took place early on the Saturday morning, and that a group of young men beat the man with a glass ashtray. The spokesperson also said the assailants shouted about foreigners.
The man suffered internal bleeding and head injuries that news reports described as serious.
Far-right groups have long promoted anti-LGBT violence in Serbia, where the government has repeatedly vowed to protect human rights in its requests to join the European Union.
The most recent violence led to a pro-LGBT demonstration in Belgrade.