BERKELEY — A person was struck and killed by a BART train on Friday morning, creating major delays for travelers between Richmond and Millbrae, the latest in a string of incidents on the transit system’s line that have made it a tough week for riders.

BART spokesperson Michelle Robertson said that the incident happened around 6:30 a.m. at the North Berkeley station.

Service on the Red Line between Richmond and San Francisco, and the Orange Line, which travels from Richmond to North San Jose, experienced major delays.

The incident shut down Red-Line service sporadically until about 8 a.m., Robertson said. BART restored its full Red and Orange Line service about 9:15 a.m.

Major delays continued after the Red Line was re-opened.

It was the second consecutive day that a medical emergency on the tracks disrupted service, and continued a recent trend of tough commutes for BART passengers.

On Wednesday, unscheduled track maintenance forced BART to close the Red Line and part of its Green Line early in the commute. A fire near the tracks closed service between the Daly City and Balboa Park stations on May 27, the day BART opened after a week-long closure of the Green Line caused by another fire near the San Leandro station.

Before those incidents, BART had to shut down its entire system for more than five hours on May 9.

A network connectivity issue with BART’s computer system that prevented operators in the control system from seeing all trains on the track caused that shutdown.

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