TOKYO, Mar 17(TOI): The official number of dead and missing after a devastating earthquake and tsunami that flattened Japan's northeast coast has passed 13,000, police said Thursday, but reports hinted at a much higher toll.

The number of confirmed dead from Friday's twin disasters stood at 5,178, while the official number of missing remained at 8,606, the national police agency said in its latest update.

A total of 2,285 people were injured in the disaster.

But reports continued to come in which indicated that the final toll could be much higher.

The mayor of the coastal town of Ishinomaki in Miyagi prefecture said late Wednesday that the number of missing there was likely to hit 10,000, Kyodo News reported.

On Saturday, public broadcaster NHK reported that around 10,000 people were unaccounted for in the port town of Minamisanriku in the same prefecture.

Amid a mass rescue effort there were grim updates indicating severe loss of life along the battered east coast of Honshu island, where the monster waves destroyed or damaged more than 55,380 homes and other buildings.