India, June 6 -- A maritime drone that is being used in the war in neighbouring Ukraine exploded on Friday at a Black Sea port in Romania but did not cause any casualties, the Defence Ministry said.

It said the drone self-detonated in the port of Constanta at around 10:30 am, and that the area had already been secured and isolated by the Romanian Intelligence Service, coast guard and the Defence Ministry.

The drone was not part of the Romanian army's equipment and was not involved in its recent exercises in the Black Sea area, the ministry said. The area was evacuated, authorities said. The maritime incident occurred a week after a Russian aerial drone that was part of an attack on Ukraine went astray and struck an apartment building in...