Aug 19 (Reuters) - Debris from destroyed Ukrainian

drones sparked fires at an oil refinery and a hospital roof in

Russia's Volgograd region, the administration of the

southwestern Russian region said on Tuesday in a post on the

Telegram messaging app.

"Firefighters are working on site trying to contain and

extinguish the fires," the administration cited the region's

governor, Andrei Bocharov, as saying in its post.

"According to preliminary information, there are no

injuries."