Two New Bedford residents were arrested Saturday in conjunction with a narcotics investigation at the Capri Motel on Route 6, Dartmouth police report.

Dartmouth Police detectives arrested Jonathan Costa, 44, of Earle Street, New Bedford, and Grace Bennett, 30, of Tinkham Street, New Bedford on charges of possession with intent to distribute a Class A substance (Fentanyl), and conspiracy to violate drug laws, police said.

As a result of the arrest, 254 bags of suspected Fentanyl, and $641 in cash were seized, police said.

A Dartmouth Police K-9 specializing in the detection of narcotics was also used during the investigation.  “Our commitment to ridding Dartmouth of dangerous individuals, such as these two, remains a top priority,’’ Chief Brian P. Levesque said. “Each battle that we win against the war on drugs could help save countless lives.”