SYDNEY (AP) — Two gunmen attacked a Hannukah celebration on a Sydney beach Sunday, killing at least 11 people in what Australian Prime Minister Anthony Albanese called an act of antisemitism and terrorism.

The massacre at one of Australia’s most popular and iconic beaches followed a wave of antisemitic attacks that have roiled the country over the past year, although the authorities didn’t suggest those episodes and Sunday’s shooting were connected. It is the deadliest shooting for almost three decades in a country with strict gun control laws.

One gunman was fatally shot by police and the second, who was arrested, was in critical condition, authorities said. Police said one of the gunmen was known to the security services, but that there had been no specific threat.

At least 29 people were confirmed wounded, including two police officers, said Mal Lanyon, the police commissioner for New South Wales state, where Sydney is located.