SAN FRANCISCO (KCBS) — The San Francisco Municipal Railway light rail system was facing major delays Tuesday morning as trains between the Van Ness and Civic Center stations lost power twice.

San Francisco Supervisor Scott Wiener, a frequent critic of Muni’s on-time record and other issues related to the transit agency, was on one of the delayed Muni Metro trains, causing him to be late for a meeting – focusing on transportation issues..

READ MORE: Early Season Red Flag Warning Sends Residents Scrambling To Protect Homes

Muni officials say delays began about 8:45 a.m.

READ MORE: One Dead, Two Wounded In San Jose Shooting

The scene was eventually cleared by 9:35 a.m. but the trains that were held back were just starting to catch up.

MORE NEWS: COVID: San Francisco Businesses Thriving Again Under New Yellow Tier Freedoms

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 This material may not be published, broadcast, rewritten, or redistributed.)