SHIJIAZHUANG -?Seven people went missing after a fishing boat capsized on sea off the estuary of Luanhe River in North China's Hebei province Wednesday morning.

There were 8 crew on board the locally-registered boat. One of the them has been rescued by people on a passing vessel, which also reported the shipwreck at around 8 a.m. for rescue.

The North China Sea Maritime Rescue Center has dispatched 11 vessels and a helicopter in search for the missing.

Rescuers said the boat has already sunk under the water. No life sign has been detected in the cabin. Frogmen have been called for to salvage the sunk boat.