After a night of heavy rain, a rockslide including a large boulder has blocked part of the main highway between North Texas and Oklahoma City.
The Oklahoma Highway Patrol has closed the northbound lanes of Interstate 35 in Murray County after a downpour. Troopers say a vehicle hit the boulder that rolled down from the Arbuckle Mountains and that at least one person was hurt.
Smaller rocks are continuing to fall in the area.
Murray County was one of the areas hit hardest by the remains of Tropical Storm Bill overnight. National Weather Service meteorologist Vivek Mahale in Norman says the storm dropped 6 to 11 inches of rain on portions of Murray and Carter counties.
The service has issued a flash flood watch for the eastern half of the state that is expected to last into the evening.