The train, stopped on Union Pacific tracks just south of the Van Nuys station at Van Nuys Boulevard and Saticoy Street at about 9:45 Saturday night, was allowed back into service at about midnight, said Lt. John Romero.
The bomb squad interviewed passengers and dogs sniffed bags, said Romero.
"This was entirely precautionary," said Romero. "There was no specific threat."
He said the woman did not make any threat. A comment made by the man who was a non-passenger raised the concerns. Romero said he did not know whether police would talk to the man who made the comments that delayed passengers for more than two hours.