NEW YORK (CBS 2) — Emergency crews are still on the scene where a tanker crashed in Middlesex County on Saturday evening.

The tanker, which was carrying 7,000 gallons of fuel, crashed and overturned on Route 440 in Woodbridge around 6:30 p.m.

READ MORE: COVID Progress: CDC Announces What Fully Vaccinated People Can Do

State police closed the highway in both directions while hazmat crews worked overnight to clean up any fuel that leaked into the roadway. The roadway has since been reopened.

READ MORE: Broadway Trombonist Leads Dozens In Virtual Performance To Inspire Young Performers On International Women's Day

Police told CBS 2 that 2,000 gallons were lost in the grass.

MORE NEWS: Meghan Markle's Admission To Mental Health Struggle Could Encourage Others To Seek Help, Expert Says

The driver of the tanker was airlifted to Robert Wood Johnson Hospital in New Brunswick where his condition is unknown.