Three of the gunmen were killed in an exchange of fire, while two bodyguards and two civilians walking by were wounded.

The governor and security director of the southern Yemeni city of Aden escaped a gun attack on their convoy on Tuesday, a security official said, the latest in a string of militant attacks on the government.

Three of the gunmen were killed in an exchange of fire, while two bodyguards and two civilians walking by were wounded, the official said. But Governor Aidarus al-Zubaidi and Brigadier General Shalal Ali Shayyeh were unhurt.

Both men have survived attacks before. Al-Qaeda and ISIS militants have taken advantage of 10 months of civil war in Yemen to expand their presence in Aden, where the embattled government is based.

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