Six Sunrise Coal miners were injured during an underground accident early Friday morning.

The Knox County Sheriff’s Department says they responded to the Sunrise Coal Mine on Perry Road at 12:55am for the accident.

Two of the injured workers were transported by medical helicopter to Deaconess Hospital in Evansville. Four other injured miners were transported by ambulance to Good Samaritan Hospital in Vincennes.

The Sheriff’s office says the accident appears to have been a collision involving the mine ride.

The injured workers’ names have not been released at this time, pending notification of family.

The Mine Safety and Health Administration is investigating the accident.