At least six people have been seriously injured after a fight inside a Sikh temple in the Austrian capital Vienna, BBC reported.
Police said five men armed with knives and another with a pistol began fighting during a festival, the BBC's Bethany Bell reported.
The number of injured is expected to rise, a police spokeswoman said.
All six of the armed men were severely injured in the incident and were taken to hospital, where they were arrested, our correspondent said.
She said the men were apparently extremists who disagreed with the teachings of the preacher.
The Indian temple is situated in Vienna-Rudolfsheim, in the 15th district of the capital.