A wounded, fighter loyal to Libya's U.N.-backed government (GNA) walks in front of a house burned during clashes with troops loyal to Khalifa Haftar in Wadi Rabiya neighbourhood at outskirts of Tripoli, Libya May 28, 2019. REUTERS/Goran Tomasevic 

A damaged tank belonging to fighters loyal to Libya's U.N.-backed government (GNA) is seen in Wadi Rabiya neighbourhood at outskirts of Tripoli, Libya May 28, 2019. REUTERS/Goran Tomasevic 

A damaged wall of a mosque is seen after forces loyal to Khalifa Haftar fired a mortar shell in Wadi Rabiya neighbourhood at outskirts of Tripoli, Libya May 28, 2019. REUTERS/Goran Tomasevic 

A fighter loyal to Libya's U.N.-backed government (GNA) looks at a room burned during clashes with troops loyal to Khalifa Haftar in Wadi Rabiya neighbourhood at outskirts of Tripoli, Libya May 28, 2019. REUTERS/Goran Tomasevic 

Fighters loyal to Libya's U.N.-backed government (GNA) hold RPG-s (rocket-propelled grenades) during clashes with forces loyal to Khalifa Haftar at the outskirts of Tripoli, Libya May 25, 2019. Picture taken May 25, 2019. REUTERS/Goran Tomasevic 

A fighter loyal to Libya's U.N.-backed government (GNA) takes a photo of a rocket fired by troops loyal to Khalifa Haftar in Tripoli, Libya May 27, 2019. REUTERS/Goran Tomasevic TPX IMAGES OF THE DAY 

Fighters loyal to Libya's U.N.-backed government (GNA) fire guns during clashes with forces loyal to Khalifa Haftar on the outskirts of Tripoli, Libya May 25, 2019. REUTERS/Goran Tomasevic 

A fighter loyal to Libya's U.N.-backed government (GNA) fires a mortar during clashes with forces loyal to Khalifa Haftar on the outskirts of Tripoli, Libya May 25, 2019. REUTERS/Goran Tomasevic 

Fighters loyal to Libya's U.N.-backed government (GNA) gesture during clashes with forces loyal to Khalifa Haftar on the outskirts of Tripoli, Libya May 25, 2019. REUTERS/Goran Tomasevic 

A fighter loyal to Libya's U.N.-backed government (GNA) holds bullets during clashes with forces loyal to Khalifa Haftar on the outskirts of Tripoli, Libya May 25, 2019. REUTERS/Goran Tomasevic 

A fighter loyal to Libya's U.N.-backed government (GNA) shouts after escaping incoming rounds during clashes with forces loyal to Khalifa Haftar on the outskirts of Tripoli, Libya May 25, 2019. REUTERS/Goran Tomasevic 

A fighter loyal to Libya's U.N.-backed government (GNA) fires a 105 mm recoilless rifle during clashes with forces loyal to Khalifa Haftar on the outskirts of Tripoli, Libya May 25, 2019. REUTERS/Goran Tomasevic 

A fighter loyal to Libya's U.N.-backed government (GNA) prays during clashes with forces loyal to Khalifa Haftar on the outskirts of Tripoli, Libya May 25, 2019. REUTERS/Goran Tomasevic 

A fighter loyal to Libya's U.N.-backed government (GNA) gestures during clashes with forces loyal to Khalifa Haftar on the outskirts of Tripoli, Libya May 25, 2019. REUTERS/Goran Tomasevic TPX IMAGES OF THE DAY 

Men walk in front of Rixos hotel damaged by a rocket in Tripoli, Libya May 24, 2019. REUTERS/Goran Tomasevic TPX IMAGES OF THE DAY 

A fighter loyal to Libya's U.N.-backed government (GNA) fires a weapon during a clash with forces loyal to Khalifa Haftar at the outskirts of Tripoli, Libya May 21, 2019. REUTERS/Goran Tomasevic TPX IMAGES OF THE DAY 

A fighter loyal to Libya's U.N.-backed government (GNA) gestures during a clash with forces loyal to Khalifa Haftar at the outskirts of Tripoli, Libya May 21, 2019. REUTERS/Goran Tomasevic 

A fighter loyal to Libya's U.N.-backed government (GNA) shouts during a clash with forces loyal to Khalifa Haftar at the outskirts of Tripoli, Libya May 21, 2019. REUTERS/Goran Tomasevic 

Fighters loyal to Libya's U.N.-backed government (GNA) take cover during a clash with forces loyal to Khalifa Haftar at the outskirts of Tripoli, Libya May 21, 2019. REUTERS/Goran Tomasevic 

A fighter loyal to Libya's U.N.-backed government (GNA) fires a weapon during a clash with forces loyal to Khalifa Haftar at the outskirts of Tripoli, Libya May 21, 2019. REUTERS/Goran Tomasevic 

Fighters loyal to Libya's U.N.-backed government (GNA) walk during a clash with forces loyal to Khalifa Haftar at the outskirts of Tripoli, Libya May 21, 2019. REUTERS/Goran Tomasevic 

A fighter loyal to Libya's U.N.-backed government (GNA) fires a RPG during a clash with forces loyal to Khalifa Haftar at the outskirts of Tripoli, Libya May 21, 2019. REUTERS/Goran Tomasevic 

A fighter loyal to Libya's U.N.-backed government (GNA) fires a weapon during a clash with forces loyal to Khalifa Haftar at the outskirts of Tripoli, Libya May 21, 2019. REUTERS/Goran Tomasevic 

A fighter loyal to Libya's U.N.-backed government (GNA) shouts during a clash with forces loyal to Khalifa Haftar at the outskirts of Tripoli, Libya May 21, 2019. REUTERS/Goran Tomasevic 

A fighter loyal to Libya's U.N.-backed government (GNA) drives in a damage pickup truck during a clash with forces loyal to Khalifa Haftar at the outskirts of Tripoli, Libya May 21, 2019. REUTERS/Goran Tomasevic 

A fighter loyal to Libya's U.N.-backed government (GNA) fires an AK-47 during a clash with forces loyal to Khalifa Haftar at the outskirts of Tripoli, Libya May 21, 2019. REUTERS/Goran Tomasevic 

Fighters loyal to Libya's U.N.-backed government (GNA) fire weapons during a clash with forces loyal to Khalifa Haftar at the outskirts of Tripoli, Libya May 21, 2019. REUTERS/Goran Tomasevic 

A fighter loyal to Libyan internationally recognised government fires a AK-47 during clashes with forces loyal to Khalifa Haftar at outskirts of Tripoli, Libya May 16, 2019. REUTERS/Goran Tomasevic 

A fighter loyal to Libyan internationally recognised government fires a heavy machine gun during clashes with forces loyal to Khalifa Haftar at outskirts of Tripoli, Libya May 16, 2019. REUTERS/Goran Tomasevic 

Fighters loyal to Libyan internationally recognised government carry a heavy machine gun during clashes with forces loyal to Khalifa Haftar at outskirts of Tripoli, Libya May 16, 2019. REUTERS/Goran Tomasevic 

A fighter loyal to Libyan internationally recognised government walk inside a building at outskirts of Tripoli, Libya May 16, 2019. REUTERS/Goran Tomasevic TPX IMAGES OF THE DAY 

A fighter loyal to Libyan internationally recognised government looks at fighters positions loyal to Khalifa Haftar outside Tripoli, Libya May 15, 2019. REUTERS/Goran Tomasevic 

Fighters loyal to Libyan internationally recognised government walk on the frontline outside Tripoli, Libya May 15, 2019. REUTERS/Goran Tomasevic 

Fighters loyal to Libyan internationally recognised government look at positions of fighters loyal to Khalifa Haftar outside Tripoli, Libya May 15, 2019. REUTERS/Goran Tomasevic 

Fighters loyal to Libyan internationally recognised government look at positions of fighters loyal to Khalifa Haftar outside Tripoli, Libya May 15, 2019. REUTERS/Goran Tomasevic 

A fighter loyal to Libyan internationally recognised government takes a break during clashes outside Tripoli, Libya May 15, 2019. REUTERS/Goran Tomasevic 

A fighter loyal to Libyan internationally recognised government walks inside a house near position of fighters loyal to Khalifa Haftar outside Tripoli, Libya May 15, 2019. REUTERS/Goran Tomasevic 

Fighters loyal to Libyan internationally recognised government fire guns at forces loyal to Khalifa Haftar outside Tripoli, Libya May 15, 2019. REUTERS/Goran Tomasevic 

Fighters loyal to Libyan internationally recognised government walk on the frontline outside Tripoli, Libya May 15, 2019. REUTERS/Goran Tomasevic 

A fighter loyal to Libyan internationally recognised government looks at forces loyal to Khalifa Haftar positions outside Tripoli, Libya May 15, 2019. REUTERS/Goran Tomasevic 

A fighter loyal to Libyan internationally recognised government gestures during clashes with forces loyal to Khalifa Haftar outside Tripoli, Libya May 15, 2019. REUTERS/Goran Tomasevic 

Fighters loyal to Libyan internationally recognised government jump over the wall during clashes with forces loyal to Khalifa Haftar outside Tripoli, Libya May 15, 2019. REUTERS/Goran Tomasevic 

A fighters loyal to Libyan internationally recognised government aims 105 mm cannon durning clashes with forces loyal to Khalifa Haftar outside Tripoli, Libya May 15, 2019. REUTERS/Goran Tomasevic 

Fighters loyal to Libyan internationally recognised government run during clashes with fighters loyal to Khalifa Haftar outside Tripoli, Libya May 15, 2019. REUTERS/Goran Tomasevic 

A fighter loyal to Libyan internationally recognised government walks on a wall during clashes with forces loyal to Khalifa Haftar outside Tripoli, Libya May 15, 2019. REUTERS/Goran Tomasevic 

A fighter loyal to Libyan internationally recognised government fires a 105 mm cannon at forces loyal to Khalifa Haftar outside Tripoli, Libya May 15, 2019. REUTERS/Goran Tomasevic TPX IMAGES OF THE DAY 

A member of the Libyan internationally recognised government holds a RPG as he sits on top of a building at outskirts of Tripoli, Libya May 12, 2019. REUTERS/Goran Tomasevic 

A member of the Libyan internationally recognised government forces operates a drone at outskirts of Tripoli, Libya May 11, 2019. REUTERS/Goran Tomasevic 

A member of the Libyan internationally recognised government fires a rifle as other fighter takes a rest at outskirts of Tripoli, Libya May 12, 2019. REUTERS/Goran Tomasevic 

A member of the Libyan internationally recognised government fires a rifle at outskirts of Tripoli, Libya May 12, 2019. REUTERS/Goran Tomasevic 

A member of the Libyan internationally recognised government forces jumps from a wall after he fired a rifle on the outskirts of Tripoli, Libya May 12, 2019. REUTERS/Goran Tomasevic TPX IMAGES OF THE DAY