The confrontation happened around 5:00 p.m. Thursday in the area of Edgemoor Gardens.
Officers say they tried to pull over a gold Chevrolet Trailblazer, driven by 43-year-old Clifton Packer, after witnessing a traffic violation.
Police say they pulled over the vehicle and removed Packer from the SUV. They say that's when they smelled a strong odor of marijuana.
As officers were speaking to Packer, they say he pushed one of them then jumped back in his car. While fleeing, police say Packer intentionally rammed a marked police cruiser.
Police began a pursuit onto I-495, but say they broke it off because Packer was driving too dangerously. He was last seen driving into Pennsylvania.
His SUV has Delaware license plate PC233411.
Anyone with information is asked to call New Castle County Police Department at 302-395-8110 or visit their website at www.nccpd.com.
