A senior aide to Barack Obama flew into Yemen on Sunday to meet the leader of a country and discuss how to tackle the al-Qaeda group that Washington believes has also targeted the US,a Yemeni official said.
The visit of John Brennan,the US presidents counter-terrorism adviser,comes after Washington said it foiled an airliner bomb plot linked to al-Qaedas Yemen-based affiliate.
Washington has stepped up its drone attacks in Yemen since President Abd-Rabbu Mansour Hadi took office in February.
Two apparent US drone attacks killed at least 10 suspected al Qaeda-linked militants in Yemen on Saturday.
Brennans visit comes as assailants hurled a hand grenade at the house of Information Minister Ali al-Amrani on Saturday. A bystander was wounded.
On Sunday,officials said 42 people were killed in heavy clashes between the army and al-Qaeda-linked militants in the south of the country.