Dili – Unidentified assailants opened fire on a UN convoy in East Timor amid ongoing violence following the appointment of resistance fighter Xanana Gusmao as prime minister, the UnitedNations and police said Saturday.

None of the 10 people traveling in the three-car convoy was injured in the attack Friday, but one of the cars caught fire, the United Nations said in a statement.

Local police commander Pedro Belo said UN police officers traveling with the convoy returned fire and blood on the ground close to the ambush site indicated that one of the attackers had been hit.

At least 12 people have been injured and 120 houses set alight in unrest since Gusmao was appointed prime minister on Monday, following June elections that ended with no party winning an overall majority.

The violence has mostly involved young men torching unoccupied buildings, throwing stones at UN vehicles and setting up roadblocks in areas loyal to the sidelined former ruling party, Fretilin.