Islamists

Tunisia security forces 'killed in militant attack'

At least seven police have been killed in Tunisia in clashes with Islamist militants, reports say.

A heavy exchange of gunfire was reported in the central region of Sidi Bouzid and at least two militants were also reported killed.

The fighting came as thousands of Tunisians marched in the capital, calling for the resignation of the Islamist-led government.

Prime Minster Ali Larayedh is expected to announce his intention to resign.

Since the popular revolt that sparked the "Arab Spring" in 2011, Tunisia has seen a rise in attacks by militants.

A coalition led by the moderate Islamist Ennahda party was elected in 2011. But some government critics accuse it of being soft on hardline Islamist forces - charges it strongly denies.