STORY: A Reuters journalist saw clashes in the central district near the Radisson Blu hotel, an area where several government and international agencies and diplomatic missions are based, as well as military vehicles mobilized around Zawiyat Dahmani.
Witnesses also said there was fighting in the Asbaa area and in Ain Zara. Tripoli residents said a man and a child had been killed. Local news reports, citing medical sources, later said that five people had been killed.
Libya has been teetering on the edge of chaos for months after the eastern-based parliament rejected the unity government in Tripoli, which was installed through a U.N.-backed process last year, and appointed a rival administration.
Both prime ministers have support from among the armed factions that control territory in the capital and other western Libyan cities.
Over recent weeks, political shifts have pointed to a possible realignment among power brokers and armed factions that could prompt renewed fighting.