Sana'a: A Yemeni medic and a witness said security forces forcibly dispersed a protest in the southern city of Aden, firing at the protesters and lobbing tear gas canisters, killing two people and injuring 13.

The witness said some armed men among the protesters returned fire. A security official said three troops were injured, including an officer. The medic spoke yesterday on condition of anonymity because he was not authorised to speak to reporters. The witness feared retribution.

Protesters all over Yemen held rallies rejecting a law granting President Ali Abdullah Saleh immunity from prosecution for any crimes committed during his 33-year rule.

Immunity is part of the power transfer deal he signed.

Protesters reject that part of the deal and demand that he be tried for corruption and killing protesters.