A BART train hit and killed a person on the tracks at San Francisco Civic Center BART station Monday morning, closing the station temporarily and creating delays across the system.

A possible collision between a BART train and a person on the tracks closed down BART’s Civic Center station on Tuesday morning, officials said. BART called the incident a “major medical emergency,” but spokesperson Jim Allison said only that a collision “may have occurred.

Organized thieves target freight trains in western deserts, stealing millions in Nike sneakers with sophisticated heist operations.

Thieves have targeted freight trains running through California and Arizona in a string of audacious heists that have resulted in the theft of more than $2 million worth of new Nike sneakers