Ukrainian border guards on Thursday stopped a group of 15 people from the Middle East posing as tourists from crossing the border from Belarus, a statement said.
Ukraine is wary of becoming a new flashpoint in the migrant crisis unfolding on the border of Belarus and Poland, and sent additional forces to reinforce its northern border.
"Currently, the servicemen of the State Border Guard Service have decided not to allow entry and to return the travelers to the Republic of Belarus, as these persons had no grounds to enter the territory of our state," the statement said.