NEW BATAAN, Philippines — The number of people missing after a typhoon devastated parts of the southern Philippines jumped to nearly 900 after families and fishing companies reported losing contact with more than 300 fishermen at sea, officials said Sunday.

The fishermen from southern General Santos city and nearby Sarangani province left a few days before Typhoon Bopha hit the main southern island of Mindanao on Tuesday, triggering flash floods that killed more than 600, said Benito Ramos, civil defense chief.