CNN  — 

Divers on Tuesday will resume their search for three people missing after two boats collided on the Colorado River along the California-Arizona border, leaving one person dead.

The body of Brian Grabowski, 50, of Tulare was found Tuesday morning and Christine Lewis, 51, of Visalia was found Monday.

Three other boaters involved in Saturday night’s collision have not been found.

Nine people were injured in the crash, two critically, the department said in a statement.

The crash happened Saturday night on the river between Needles, California, and Topock, Arizona, north of Lake Havasu, officials said. The sheriff’s office said the boats – one moving north carrying 10 people, the other moving south and carrying six people – collided head-on.

The sheriff’s department said the boats – one northbound and carrying 10 people and the other southbound and occupied by six people – collided head on.

All those on board the boats were thrown into the water and both boats sank, the sheriff’s department said. Nine people were injured, officials said.

Rescue crews arrived about 45 minutes after the first calls for help and found more than a dozen people injured, Eric Sherwin, a spokesman for the San Bernardino County Fire Department, said Saturday.

On Sunday, the sheriff’s department said four people, all of whom were traveling on the northbound boat, were missing. The San Bernardino County Sheriff’s Department, Arizona Department of Public Service Air Rescue and Care Flight all deployed helicopters in the search.

Nine people were transported to area hospitals by ambulance. Two critically injured people were flown to a hospital in Las Vegas, Schuster said.

The Mohave and San Bernardino county sheriff’s departments are conducting dive and search operations in the area of the crash, which stretches for about 2 miles, officials said.