RAWLINS, Wyo. (AP) — Two workers were injured during a brief fire at the same refinery near Rawlins where four workers were injured in another blaze last month.

Sinclair Oil. Corp. spokesman Clint Ensign tells the Associated Press in an email Tuesday  that the fired happened Friday night. He says the fire that injured the two workers was limited to a pump and that the refinery is in operation.

The newspaper reports that one worker was treated and immediately released from a hospital and that the other worker was released Monday.

A fire on May 8 at the refinery about five miles east of Rawlins injured four workers. The Wyoming Occupational and Safety Health Administration is investigating that fire and citations against the refinery are possible.