US President Donald Trump said it might be necessary to let Ukraine and Russia “fight for a little while” before brokering a peace deal and suggested he might be willing to implement fresh sanctions on both countries if he determined the conflict wasn’t going to end.

At least five people, including a 1-year-old child, his mother and grandmother, were killed Thursday in a nighttime Russian drone strike that hit the northern Ukrainian city of Pryluky, officials said.