利比亚对立民兵组织机场交火

Heavy fighting between militias vying for control of the airport in Libya's capital has killed at least three people and grounded flights through the middle of the week.

An armed Islamist group attacked Zintan militiamen, who have controlled Tripoli International Airport since the overthrow of Moammar Gadhafi in 2011, in some of the worst fighting the country has seen in six months.

An airport official said rockets hit the facility just before sunrise Sunday.  The Operations Cell of Libyan Revolutionaries, a coalition of Islamist militias, claimed responsibility.

The opposing groups are seen as the armed wings of two political factions, the liberals and Alarmists, struggling for the upper hand in the Libyan parliament.

On Saturday, U.S. State Department spokeswoman Jen Psaki said (in a statement) the U.S. is "deeply concerned" the ongoing violence in Libya could lead to "widespread conflict."