Man and 3 boys dead after Grand Meadow house fire, sheriff says

A man and three boys are dead after a house fire Sunday in the southeastern Minnesota city of Grand Meadow, according to the Mower County Sheriff's Office.

Crews were called to the scene off First Street Northeast just before 11:30 a.m. where they arrived to find smoke coming from the home.  

"The nature and complexity of the investigation into this tragic incident requires thorough and cooperative review of all evidence to ensure the integrity of the investigation and any publicly available information is accurate prior to release," the sheriff's office said Monday afternoon.

Officials are working to determine the cause of the fire, as well as the cause of death of the four people.