Turkish police on Tuesday fired tear gas to break up a protest over a call for the country to adopt a religious constitution that has sparked concerns of creeping Islamisation in the traditionally secular state.
Officers in riot gear clashed with a crowd of more than 100 demonstrators outside parliament, an AFP photographer reported.
The group chanted "Turkey will remain secular" as police tussled with the crowd, detaining several protesters.
"The police's mission is to protect secularism and rights. This boy is fighting for a secular regime," opposition MP Mahmut Tanal told officers, as he helped a dazed demonstrator stand after the police push.
The row was caused by parliament speaker Ismail Kahraman, who on Monday said the predominantly Muslim country "must have a religious constitution", alarming those worried the ruling Justice and Development Party (AKP) is boosting Islamism.