P108 CEEFAX 108 Sat 13 Feb 22:31/58       The Soviet Union has issued an official protest to the United States over an incident in the Black Sea yesterday. Two Soviet warships were in collision with two US navy warships off the Crimean coast. The Soviet foreign ministry told the US embassy in Moscow that the US ships had violated the Soviet border in a "provocative and deliberate action". The US said yesterday that the collisions occurred when the US ships were exercising the right of innocent passage through the area. News index 102/202 Newsreel 119/219