An accident involving a driver heading the wrong way closed all lanes on the southbound Interstate Highway 280 in Los Altos Hills early Thursday morning, according to the California Highway Patrol.
The wrong-way driver was first reported at 12:52 a.m. near the Page Mill Road off ramp, CHP officials said.
All lanes were reported closed at 1:30 a.m. in order to clean up debris from the collision, according to the CHP. CHP officers began diverting traffic off at Alpine Road at 1:42 a.m., according to the CHP.
No estimate for when the roadway will reopen was available.