SAN DIEGO (FOX 5/KUSI) -- Authorities are investigating after two people were killed in two separate train collisions in northern San Diego County in the past week.

A pedestrian was struck and killed by a COASTER train in the area of Chestnut Avenue and Washington Street, south of Carlsbad Village Drive, in Carlsbad around 8:41 p.m. on Wednesday, Aug. 27, according to the North County Transit District (NCTD).

The fatal collision stopped COASTER service in the area south of the Carlsbad Village Station and a BREEZE bus was brought in to transport riders.

In a separate incident, a pedestrian was struck and killed by a SPRINTER train in Vista at 8:58 p.m. on Tuesday, Sept. 2, according to NCTD.

The train tracks were closed after the fatal collision and NCTD brought in a BREEZE bus to tran

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