International Desk:
At least four people have been killed and ten hospitalised as a series of forest fires swept through part of the eastern Ukrainian region of Luhansk on Thursday.

The fires threatened 22 settlements and engulfed an area of about 18,000 hectares (70 sq miles), the service said in a statement, adding that 120 people were evacuated.

Ukraine's emergency service said there were a total of 146 fires, 82 of them were extinguished.

Most of the fires are located near the area controlled by pro-Russian separatists and local Ukrainian authorities have stated that the fires may have been caused by shelling from the separatists.

The Ukrainian presidential office called on law enforcement bodies to find the cause of the fires.

"The reasons for such a large-scale spread of fire must be clearly established," the office said in a statement.

Last month the Ukrainian military accused pro-Russian separatists of violating a ceasefire with government forces.

The simmering conflict between Ukrainian troops and Russian-backed rebels has killed more than 13,000 people since 2014. Major combat ended with a truce agreed in the Belarus capital Minsk in 2015, but sporadic clashes still regularly kill civilians, Ukrainian soldiers and separatists.

Earlier this year, one person died and nine were hospitalised in a similar forest fire that swept through the Luhansk region, destroying 80 dacha holiday cottages and 30 houses in two villages. Source: Reuters