Grenade explodes during Ukraine clashes; 1 officer killed

KIEV, Ukraine (AP) — A grenade exploded outside Ukraine's parliament during a nationalist protest against a vote to give greater powers to separatist regions in the east, killing one police officer and injuring more than 100, the interior ministry said.

The decentralization of power was a condition of a truce signed in Minsk in February aimed at ending the fighting between Ukrainian government troops and Russia-backed separatists that has left more than 6,800 dead since April 2014. But some Ukrainians oppose changing the constitution, saying that it would threaten the country's sovereignty and independence.