About 100 people were injured and five others were missing yesterday in a blaze aboard a Pakistan Navy ship during exercises in the territorial waters of the restive southern port city of Karachi, according to private Geo television.

Hospital sources were quoted as saying that among the injured, 35 people have been admitted in a navy hospital in Karachi and 35 others are being operated upon.

The Pakistan Navy confirmed the fire, which is said to have broken out during routine exercises on the ship, but the cause of the fire was yet unknown.