MORRISVILLE — Fire Department officials are investigating an explosion that injured one man Thursday in a building at 3000 Bear Cat Way.

The injured man was taken to Duke Hospital. He was conscious and alert during transport, but the extent of his injuries is unknown, according to Stephanie Smith, a spokeswoman for the town of Morrisville.

The Fire Department determined that the explosion was by the improper mixing of chemicals used in food preparation, Smith said. The building is located in an industrial complex, described in real estate records as an office-warehouse facility.

No further details have been released.