UPDATED 4:18 p.m.: The highway has reopened in both directions, the Oregon Department of Transportation reports.

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U.S. 101 is closed in both directions due to a landslide and transportation officials said there was no immediate timetable to clear the highway.

The Oregon Department of Transportation said the landslide occurred about four miles south of Cannon Beach on the coastal highway.

Lou Torres said the northbound lanes are blocked. "There's enough material that's kind of filtering down that we feel it's not safe to let traffic through right now," he said in an interview.

The transportation department is sending a geologist to the site to assess the situation.

It's unclear when the road will be open, Torres said.

Transportation officials suggest detouring around the closure if possible by using OR 53, which connects Wheeler on U.S. 101 and U.S. 26.

But travelers should avoid the area or expect long delays.

This story will be updated when more information is available.

-- Andrew Theen

atheen@oregonian.com

503-294-4026

@andrewtheen