SAN FRANCISCO (CBS SF) – There were 70 cancellations Tuesday morning at San Francisco International Airport as one of the four runways remained closed because of the deadly Asiana Airlines Flight 214 crash Saturday.

Runway 28L, the site of the crash that left two Chinese teen girls dead and more than 180 injured, will remain closed as the National Transportation Safety Board investigates the incident.

Runway 28L is expected to remain closed for at least the next few days as the National Transportation Safety Board investigates the crash.

All SFO flights were diverted or canceled following the crash. Two of four runways reopened later Saturday, and a third reopened around 1 p.m. on Sunday, according to airport officials.

On Monday, 50 departing flights and 34 arrivals were canceled, SFO duty manager Nancie Parker said.

Delays in and out of the airport were averaging between 60 and 90 minutes, she said.

Passengers affected by the flight delays and cancellations are advised to contact airline companies for information.

NTSB chairman Deborah Hersman said earlier Monday that crash wreckage and debris is visible on the runway and will not be removed until a team completes its investigation into the deadly crash.

(Copyright 2013 by CBS San Francisco and Bay City News Service. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)

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