Explosives experts defused on Sunday an anti-tank mine, T-62, that was placed near the residence of the pilots in the Sheikh Othman district in Yemen's port city of Aden, the official news agency Saba reported.

The mine was connected to electrical wires and a stick watch and the authorities are investigating, it said.

Separately, the security authorities in the same district found three RPGs thrown at the 22 May stadium amid alarming security disorder in key Yemeni cities including the business capital of Aden.

In Hadramout, the security authorities in Sayoun seized 79 kg of external hashish, of the type so called the red gold, Saba said.

The stash was found inside a car, it said, adding the suspects who were driving the car aimed their guns at the forces observing a checkpoint when checked and ran away.

After a short hunt, the two suspects were arrested.

Drugs trade has thrived in Yemen recent months, with large quantities seized mainly in southern and southeastern regions.

Also, the Yemeni government has formed a committee to investigate the deadly attack against Shiites while they were observing a religious day outside Yemen's capital this week.

Four Shiites were killed and about a dozen others injured in the bomb attack in Al-Geraf district.