A bus terminal and a customs house were damaged by Ukrainian shells fired at Russian border checkpoint Novoshakhtinsk, chief press officer of the southern customs department Rayan Farukshin told (ITAR-TASS) News Agency.
"Two facilities of customs infrastructure were damaged, including the bus terminal building where bus passengers are passing border controls and a terminal where cargo vehicles pass customs clearance operations," he said.
He added that bomb disposal technicians were searching through the buildings for dud ammunition.
Meanwhile, Ukrainian shells exploded at Russian border checkpoint Novoshakhtinsk in the gunfire at border-crossing point Dolzhansky. "Shells hit the territory of Russia and exploded, the infrastructure was damaged.
The incident occurred at around 5.30am Moscow time, no casualties were reported," chief press officer of Federal Security Service border department in southern Russia's Rostov-on-Don Region Vasily Malayev said.
The border checkpoint was suspended, he added.