Russian warships around midnight fired missiles and artillery at the Ukrainian sea coast near Tuzla, to the south of Odesa, Interior Ministry adviser Anton Gerashchenko said.

“They fired a huge amount of ammunition from a great distance,” he said on Facebook.

Gerashchenko said Russia wanted to test Ukraine’s coastal defense system.

He said there was no attempt to land troops. He didn’t say whether any of the shelling hit anything.