The incident took place around noon in Jagannathapur village, nearly 40 kms from here, under Elkathurthi police limits, when four labourers were engaged in removing slit inside a well and while excavation, suddenly side walls of the well collapsed, assistant sub-inspector A Raju said.
The two labourers who were killed were identified as Kasturi Raju (28) and Vallepu Mallaiah (48) while the injured as K Raju (27) and Ch Ramesh(25), the officer said.
The two injured persons were admitted to MGM Hospital in Warangal where their condition is reported to be critical.