Five officers with the city s river regulatory authorities are rescued after their speed boat hit rocks and was about to sink in Shenzhen Bay on Friday. They were conducting on-sea measurements when the accident happened. Rescuers in two rescue boats were dispatched by the South China Sea Rescue Bureau of the Ministry of Transport Shenzhen base. It took more than five hours to pump water out of the damaged 12-meter boat and tow it back to port. Ma Peigui