MINNEAPOLIS (WCCO) – A wrongful death lawsuit blames a landlord for the deaths of five children killed in a fire in north Minneapolis last year.

Flames tore through the Lewis family home on Valentine’s Day 2014.

READ MORE: 50-Car Train Derails In Albert Lea, Police Ask Public To Avoid Area North Of Hawthorne Street

Troy Lewis rescued two of his children, but five others, ages 18-months to 8-years-old, could not be saved.

READ MORE: MN Weather Timeline: Hail Possible In Southeastern Minnesota Saturday, Warm Week Ahead

The State Fire Marshal Division was not able to determine an exact cause of the fire, but Lewis had said heating problems forced his family to use multiple space heaters.

The lawsuit claims the children’s deaths could have been prevented if the home had better heating along with adequate smoke alarms, electrical outlets and escape points.

MORE NEWS: 1 Killed, 2 Seriously Injured In Head-On Collision Near Hinckley

The home was owned by the company Mission Inn Minnesota.