Yemeni security officials say a suicide car bomber has struck a police headquarters' recently captured by Shiite rebels who have seized power in the country. There was no immediate word on casualties.

The officials say the bomber detonated his explosives in front of the security headquarters in the central city of Bayda early Friday. The officials spoke on condition of anonymity because they are not authorized to speak to reporters.

Shiite rebels known as Houthis recently captured Bayda province after overrunning the capital, Sanaa, last September. They placed embattled President Abed Rabbo Mansour Hadi under house arrest last month along with all Cabinet members, leading to their mass resignations, and disbanded parliament.

The power grab has benefited Yemen's al-Qaida branch, which has stepped up attacks in south and central Yemen.