Al-Arabiya TV says these video stills show Libyan Prime Minister Ali Zeidan being seized by armed men from a government linked militia.
The group said he'd been arrested for his role in the U.S. capture of a senior al-Qaeda suspect in Libya.
A government official says he's in good health and being held at the Interior Ministry's anti-crime department.
Security at the Corinthia hotel in Tripoli say men in around 150 cars came to take him.
(SOUNDBITE) (Arabic) ABD RAZAQ BEN SHABAN, HEAD OF SECURITY AT CORINTHIA HOTEL, SAYING:
"People came, assigned with a paper from the Prosecutor General with an order for the arrest of Prime Minister and they showed it to the guys, they were revolutionaries, they entered and captured the Prime Minister. "
Zeidan and his government have been under pressure since the weekend when U.S. special forces seized Abu Anas al-Liby -- a Libyan suspected in the 1998 bombings of United States embassies in Kenya and Tanzania.