(Reuters) - Russian shelling killed at least four people and injured nine others in Ukraine's eastern frontline Donetsk region on Friday, the governor said.

In the town of Myrnohrad, two people were killed and six were injured in an attack that landed near an administrative building and a bus stop, Vadym Filashkin, the governor, wrote on the Telegram messaging app.

A separate attack on an unnamed enterprise in the town of Kostiantynivka killed two civilians and injured three others, he said.

Images from the impact sites which he published alongside his post showed badly-damaged building facades and a bus with shattered windows. There was also a burnt car that appeared to have been thrown to the side by a blast.

Donetsk region, which Russian troops partially occupy, regularly comes under Russian shelling and airstrikes. Moscow denies targeting civilians or civilian infrastructure in its invasion of Ukraine, although thousands of people have been killed.

(Reporting by Yuliia Dysa; editing by Tom Balmforth)