Vidisha (Madhya Pradesh), March 21 (IANS) Four persons were killed and six others injured when the tractor-trolley in which they were travelling overturned here on Wednesday night, police said.

The injured were referred to the district hospital. 

A police officer on Thursday said: "The incident occurred on Wednesday night when the driver lost control of the tractor-trolley and it overturned near Gulabganj here. The labourers were returning to their villages from a market in Patharia. Three people were killed on the spot and one succumbed to her injuries later in the hospital. 

The deceased have been identified as Killi Kol, Ramki Bai, Hiran Bai and Reshmi, he added. 

A case has been registered against the driver.