TRIPOLI, Oct. 29 (Xinhua) -- Libya's eastern-based parliament on Monday condemned a deadly terrorist attack in the central district of Jufra.

"The House of Representatives condemns the terrorist attack on Fug'ha area that killed four civilians, with several others kidnapped at dawn on Monday," the parliament said in a statement.

The parliament also declared three days of mourning for the tragedy, and called on the security forces to secure the area, pursue the terrorists and free the kidnapped, according to the statement.

Five people were killed at dawn on Monday in a terrorist attack on government buildings in the Libyan central district of Jufra, some 650 km southeast of the capital Tripoli, a military source said.

The source said the attackers are likely to be Islamic State militants.

Linking the Libyan cities of the west, east and south, Jufra has been under the control of the eastern-based army, led by Khalifa Haftar, since June 2017 when the area was cleared of militant groups.

In February, a suicide attack on a checkpoint in Jufra killed three army soldiers and destroyed the checkpoint as well as a number of vehicles.