Yemeni authorities arrested on Tuesday "one of the most dangerous" Al-Qaeda militants in the country's southeast, state news agency Saba reported.
"The arrested terrorist Omar Salem is involved in the assassination of the deputy head of the military college General Ali bin Freyjan" who was killed earlier this month, Saba quoted a military official as saying.
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Salem was arrested in Ghayl Bawazir in the southeastern province of Hadramawt after authorities received a tip-off about his whereabouts, the source said.
Al-Qaeda in the Arabian Peninsula has stepped up its attacks against Yemeni security forces, mainly in the lawless southern and eastern provinces where jihadist groups are active.
The Islamist network has taken advantage of the weakening of the central government in Sanaa since a popular uprising that toppled president Ali Abdullah Saleh in 2011.