BEIJING, July 6 -- A work team has been dispatched to central China's Hunan Province to guide rescue efforts after a dike breach in the country's second-largest freshwater lake on Friday afternoon, according to the Ministry of Emergency Management.

More than 800 people from the China National Comprehensive Fire and Rescue Team, 146 vehicles and 82 boats have been sent to the scene, according to the ministry.

An additional 50 rescue workers, along with 30 sets of equipment and a water engineering rescue team from the provincial capital Changsha, have been deployed to block the breach. Surveying drones and remote sensing satellites are being used to collect images of the breach and the surrounding affected area, the ministry said.

Emergency supplies have been sent to support local authorities in the evacuation and resettlement of disaster-affected residents.

As of 10 p.m. Friday, 5,000 residents in the affected area had been safely relocated. There were no immediate reports of trapped individuals or casualties.

The dike breach that occurred in Dongting Lake was initially about 10 meters wide but expanded afterward. The affected area near Tuanbei Village covers approximately 50 square km. This area experienced a dike breach in 1996.

Since June 16, Hunan has seen its heaviest rainfall of the year, breaking historical records in some regions.