SINGAPORE, Mar 13 (AP) -- A Chinese man has been accused of stabbing his supervisor to death in the kitchen of a crowded Singapore soup restaurant, court documents and local media said Tuesday.

A court charged Wang Zhenjun, 43, Monday with the March 10 murder of Tan Guanhua, 25, according to court documents.

Murder convictions in Singapore carry a mandatory death sentence. Wang did not enter a plea when he was charged, The Straits Times newspaper reported Tuesday.

Wang is accused of stabbing Tan once in the back with a 20-centimeter (7.9-inch) knife after a work-related dispute in the kitchen of the restaurant, as customers dined outside, the paper said.

Tan was Wang's supervisor at the restaurant, and the Chinese national had only been working their for six months, the report said.

Witnesses saw Wang pull the knife from Tan's body and place it on a table, the paper said, adding Tan died before paramedics arrived.

Wang was remanded in police custody for a week for investigation, the report said. His case will be heard Monday, it said.