Via CNN:

A drone strike in Yemen on Saturday killed at least 10 suspected al Qaeda militants but also inadvertently resulted in the deaths of three civilian day laborers, a high-level Yemeni government official told CNN.

The strike targeted a pickup in al-Hazemiyah district of al-Bayda province, three Yemeni Defense Ministry sources said. The militants were heading to neighboring Shabwa province, a hotbed for al Qaeda, they said.

“The truck targeted carried 11 militants. The targeting came while they were in transit after leaving a training site. Ten were killed and one was injured,” the government official said on the condition of anonymity.

A civilian truck carrying five day laborers was also hit in the strike, the official said. Three died and two were wounded.

A casualty toll released earlier by the three Yemen Defense Ministry officials was slightly higher, with 12 suspected militants and three civilians reportedly killed.

“The militants were on a coordinating mission, and we have had our eyes on them for quite a while now,” a senior ministry official told CNN on the condition of anonymity because he is not authorized to talk to media.