Libyan Prime Minister Ali Zeidan on Friday described his kidnapping this week as an attempted coup carried out by political opponents bent on toppling his government.

Zeidan was abducted early Thursday from a luxury hotel in Tripoli and held for several hours by militia gunmen before being released, an incident that has highlighted the security threat posed by militias that have run rampant since the revolution that ousted Moammar Gadhafi two years ago.

"I don't believe that 100 cars armed with heavy weapons can surround the hotel and lock it down and create checkpoints to prevent people from passing ... without an order from their leadership," Zeidan said in televised remarks.