MIDDLETOWN, Conn. -- An oil tank overflowed in Middletown Tuesday afternoon, causing fire crews to jump into action.

Fire officials said East River Energy was filling an underground tank at 70 Broad St. at the time of the incident.

They said the 10,000 tank overflowed, causing the problem. They said about 40 gallons of home-heating oil was spilled in the incident.

Alpine Environment Services was called to the scene to clean up the spill.

Officials said the Department of Environmental Protection would be on hand to monitor the clean-up.