A soldier was killed and three others were injured in a landmine explosion in Lawder town in Yemen's southern province of Abyan.
Local sources said the casualties were reported after the landmine had hit a military vehicle in Al-Mansiya road in eastern Lawder.
The mine may have been planted by Al-Qaeda because there was an exchange of gunfire between the forces and gunmen coinciding with the incident, the sources said.
In recent months, Al-Qaeda in the Arabian Peninsula has stepped up attacks against security and military officers, vehicles and buildings, mainly in southern and southeastern provinces.
In response, the authorities have been waging large-scale operations against militants killing, wounding and arresting many of them.
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