Massachusetts State Police say they have arrested three New Hampshire residents after allegedly finding drugs in their car during a routine traffic stop on Interstate 91 in Holyoke.

The car was pulled over early Tuesday morning.

A search of the vehicle turned up what appeared to be 1,600 packets of heroin and 32 half-packets and five bags of the club drug known as Molly, which has been linked to several recent deaths.

Two 19-year-old men, Mark Simeon and Zachery Stetson, both of Hinsdale, N.H., face drug trafficking charges. A juvenile girl in the car was also arrested.

Meantime, police tell the AP that they don't know if any of those arrested have hired lawyers yet.