Shanghai's subway authorities said they searched a subway train but found nothing abnormal after a passenger reported finding an explosive on the train on Wednesday.

A train on the city's subway Line 2 was stopped at the Nanjing West Road station after the passenger made the report. City police immediately began searching the train after evacuating its passengers. No abnormalities were found in the search, according to a subway management spokesman.

The operation of other subway trains was not affected by the search, the spokesman said.