A water main break prompted the closure of Studebaker Road at the 405 Freeway in Long Beach this morning.

The break in the 12-inch line was reported just after 11 p.m. Tuesday on Studebaker Road under the 405, according to the California Highway Patrol.

The on- and off-ramps to and from the 405 were closed to allow crews to make repairs. Mud and debris covered part of the road, the CHP said.

WATER MAIN BREAK: Studebaker Road under the 405 Freeway in Long Beach was left looking like a lake after a water main break. https://t.co/fTRsq8JDVM pic.twitter.com/E2g9B2uDC1 — CBS Los Angeles (@CBSLA) February 13, 2019

At least 150 feet of asphalt buckled due to the flooding, CBS2 reported.

The freeway ramps and the southbound lanes of Studebaker were expected to be closed at least through the end of Wednesday while crews assessed the damage, according to Kaylee Weatherly, spokeswoman for the Long Beach Water Department.

Crews were still trying to determine exactly what caused the problem, according to Weatherly, who said the pipe that broke was installed in 1961.

Water service was affected for only six customers, Weatherly said.