NORFOLK, Conn. (WTNH) – Emergency services are active in Norfolk after a gasoline tanker rolled over on Route 44 and was actively leaking gasoline on Saturday morning.

Gasoline infiltrated the storm drain system, resulting in emergency services evacuating six homes near the crash site on Greenwoods Road East as a safety precaution. Houses were also evacuated on Maple Avenue, the town said.

Route 44 from Loon Meadow to Maple Avenue, and all of Laurel Way and Maple Avenue, is closed.

Authorities are unsure how long it will take to resolve the incident, but estimate that it will be a “multi-hour event.” The town is warning residents to expect some of the road closures to be in effect for up to 72 hours.

The gas tanker is back on its wheels and the Connecticut National Guard has been requested to assist. Additionally, the Connecticut Department of Energy and Environmental Protection (DEEP) is monitoring the air and soil in Norfolk and samples will be tested on-site in a mobile lab.

“We are working to restore power and citizens to their homes as quickly and safely as we can,” Norfolk police said, noting that they expect Route 44 to remain closed for several days due to extensive cleanup.

On Sunday, Norfolk Emergency Management said the gasoline made its way under Pettibone Lane and into the brook at Maple Avenue and down to the culvert at a five-way intersection of Emerson Street, Mills Way and John Curtiss Road. A sand beam was placed to block the further movement of gasoline, and DEEP has found no evidence that any gasoline made it into the Blackberry River.

The environmental cleanup will continue for “at least” the next several days, but residents were allowed to return to their homes by 8:00 p.m. on Saturday night.

Both Botelle Elementary School and the Norfolk Early Learning Center will be open on Monday. The Learning Center has been cleared of any dangerous levels of contaminanants, according to the town of Norfolk.

The Norfolk Town Hall will be open on Tuesday for Election Day, and Maple Avenue will be accessible for residents. Although, Route 44 from Maple Avenue to Laurel Way is expected to be closed for several days, with detours in place.

The Norfolk Fire Department is asking anyone that has concerns about gas fumes in their home to call 911.