A Kuwaiti coast guard was killed on Monday in a shootout with Iraqi sailors inside Kuwait's territorial waters, the interior ministry said.
The clash broke out when an Iraqi boat entered Kuwaiti waters and refused orders from a coast guard patrol to stop, it said in a statement.
The coast guard was killed while the Iraqi boat was destroyed and an unspecified number of Iraqis arrested, the interior ministry said.
Kuwait's coast guards often seize Iraqi fishing boats and detain Iraqi fishermen for illegal entry into its waters. In October, Kuwait arrested 13 Iraqi fishermen.
There was no immediate comment from Baghdad on the latest incident.