Investigators have determined a gas leak caused an explosion early Monday morning at an apartment building on the city's east side that injured 13 people, three of whom remained in critical condition on Tuesday.

An apartment building explosion was caused by a gas leak. The fire department said what's left of the structure will need to be demolished. An apartment building explosion Monday that rocked a westside Detroit community and injured a dozen people,

Detroit fire officials said two adults remain in critical condition and a child is in the burn center following an explosion in an apartment building.

Thirteen people were hospitalized — including six kids — after an explosion at an apartment building on Detroit's west side early Monday morning.

About a dozen people have been injured, including six children, following an apparent explosion and fire Monday morning at a 2-story apartment building in Detroit. The explosion was reported about 4 a.

There is an investigation underway in Detroit, Michigan, after an apparent explosion at an apartment complex. At least 12 people were injured, according to officials. CBS News' Shanelle Kaul reports.