Police clash with hardline Salafists in Tunisia, in the latest sign of growing religious tension in the country.

A security source said that one person was killed on Tuesday night when police opened fire.

Hundreds of Salafists attacked a police station to protest the arrest of one of their colleagues accused of assaulting a police chief.

Tension has been increasing between Islamists and secularists since the Islamist Ennahda Movement won an election last year.

The moderate Islamic group formed a coalition with two non religious parties and promised not to impose strict Islamic laws.

But the government is under pressure from hardline Salafi Muslims calling for the introduction of Islamic Sharia law, and from secularists determined to prevent this.