ISTANBUL - A Kurdish mayor was accused of belonging to an armed separatist group and detained by a Turkish court, television channels reported on Sunday, in the latest sign of a crackdown on Kurdish politicians and activists.

Bekir Kaya, the mayor of the southeastern Turkish city of Van, and two provincial leaders in the pro-Kurdish Peace and Democracy Party (BDP) were remanded in custody pending trial late on Saturday, CNN Turk said.

Two other BDP officials were charged and released, it added.