CBS/AP/ January 18, 2012, 9:47 AM

Steelers coach Wilson still critical after fire

In this handout image provided by the NFL, Kirby Wilson of the Pittsburgh Steelers poses for his 2010 NFL headshot in Pittsburgh, Pennsylvania. / Photo by NFL via Getty Images

PITTSBURGH - Steelers assistant coach Kirby Wilson remains in critical condition with burns on more than 45 percent of his body.

The team released a statement from Wilson's family on Tuesday saying the 50-year-old also suffered a smoke inhalation injury during the Jan. 6 fire at his townhouse in a northern Pittsburgh suburb.

Steelers RB coach injured in Pa. fire

Authorities say the fire broke out around 3 a.m. in the kitchen of Wilson's home in Seven Fields, about 30 minutes north of the city. Flames were visible to firefighters when they arrived on the scene. The cause of the fire remains under investigation.

Wilson, in his fifth season with the Steelers, was airlifted to UPMC Mercy hospital, where he remains in the Trauma Burn Unit.