A fighter of the UN-backed Government of National Accord (GNA) observes during clashes with the eastern-based army in Sawani frontline in Tripoli, Libya, on Feb. 12, 2020. The eastern-based army in Libya has been leading a military campaign in and around the capital Tripoli since April 2019, attempting to take over the city and topple the rival UN-backed government. (Photos: Xinhua)

A fighter of the UN-backed Government of National Accord (GNA) observes during clashes with the eastern-based army in Sawani frontline in Tripoli, Libya, on Feb. 12, 2020. The eastern-based army in Libya has been leading a military campaign in and around the capital Tripoli since April 2019, attempting to take over the city and topple the rival UN-backed government.

Fighters of the UN-backed Government of National Accord (GNA) take positions during clashes with the eastern-based army in Sawani frontline in Tripoli, Libya, on Feb. 12, 2020. The eastern-based army in Libya has been leading a military campaign in and around the capital Tripoli since April 2019, attempting to take over the city and topple the rival UN-backed government.

Fighters of the UN-backed Government of National Accord (GNA) observe during clashes with the eastern-based army in Sawani frontline in Tripoli, Libya, on Feb. 12, 2020. The eastern-based army in Libya has been leading a military campaign in and around the capital Tripoli since April 2019, attempting to take over the city and topple the rival UN-backed government.

A fighter of the UN-backed Government of National Accord (GNA) takes position during clashes with the eastern-based army in Sawani frontline in Tripoli, Libya, on Feb. 12, 2020. The eastern-based army in Libya has been leading a military campaign in and around the capital Tripoli since April 2019, attempting to take over the city and topple the rival UN-backed government.

Houses are seen in Sawani frontline in Tripoli, Libya, on Feb. 12, 2020. The eastern-based army in Libya has been leading a military campaign in and around the capital Tripoli since April 2019, attempting to take over the city and topple the rival UN-backed government.