A Tunisian policeman has been shot dead and another wounded in a shootout with suspected terrorists on the outskirts of the capital city Tunis.
A government spokesmen said said there were at least two women and children inside a house who were being used as human shields, so officers were unable to storm the building.
Police negotiators in the suburb have called on those inside to surrender and used tear gas and stun grenades to try to force them out.
The standoff comes ahead of Sunday’s parliamentary elections, the first since Tunisia’s revolution in 2011.
Authorities had warned that Islamic extremists would attempt to disrupt the elections.