2 injured in explosion at truck shop in North Mankato, Minn.

NORTH MANKATO, Minn. (KMSP) - Two workers were injured Wednesday in a natural gas explosion at a truck service shop in North Mankato, Minnesota. 

The explosion occurred around 11:46 a.m. at Allstate Peterbilt on West Howard Drive. Employees were working on a compressed natural gas truck, also known as a CNG truck, when it began leaking natural gas into the shop, according to North Mankato Police Chief Ross Gullickson. 

As the employees were evacuating the building, the natural gas ignited, causing an explosion. 

A 59-year-old Ellendale man suffered first and second-degree burns and was airlifted to Regions Hospital. Gullickson said he is expected to be okay. 

A 41-year-old Gibbon man was treated at the scene for a minor hand injury and released. 

The building suffered heavy damage. 

Gullickson said there is no public safety concern and the remaining natural gas has been dissipated. 

The North Mankato Fire Department is investigating the explosion.