SAN LEANDRO -- A fix to a bad switch that caused major delays to East Bay BART trains on Monday failed on Tuesday, causing another hour of delays before the switch was repaired, BART officials reported.

Delays of 10-15 minutes began at 2 p.m. Tuesday and ran through 3 p.m. on trains bound for Dublin, Fremont, Richmond and Daly City, officials said.

The issue stemmed from a bad switch that broke shortly after 3 p.m. Monday on a track in the Bay Fair station area, said BART spokeswoman Luna Salaver.

The issue caused significant delays on Monday until the switch was replaced about 9 p.m. that evening. Trains were back on track by 10 p.m., officials said.

But at about 2 p.m. today, the switch broke again, causing 10-15 minute delays on lines running from Bay Fair to Fremont, Salaver said.

BART workers repaired the switch just before 3 p.m. today and trains were back on schedule as of 3:05 p.m., Salaver said.

Contact Natalie Neysa Alund at 510-293-2469. Follow her at Twitter.com/nataliealund.