FUZHOU - Four people were killed and three others injured after a fire broke out in a factory in East China's Fujian province Sunday morning, local authorities said.

According to the information office of Nan'an City government, the local fire department received report at around 2:30 am that a sanitary product plant caught fire.

Related departments and staff were sent to the site to put out the fire and rescue people there. The fire was extinguished at 4:00 am

The three injured have been sent to hospital for treatment.

The building that caught fire is a seven-storeyed building and the accident took place on the fifth floor, the government said.

Further investigation into the cause of the fire is underway.