“We are looking into what happened to take appropriate measures,” a Russian foreign ministry spokesperson told AFP.


Moscow on Thursday threatened Kiev with unspecified “consequences” after Ukraine said it was holding a Russian tanker for its role in a naval confrontation between the two countries last November.


“We are looking into what happened to take appropriate measures,” a Russian foreign ministry spokesperson told AFP.


“If Russians are taken hostage, this would be interpreted as the crudest violation of international law and consequences will not be long in coming.”