PORTLAND — Three people from Massachusetts face charges in connection with an incident that appears to be drug-related, police said.

Jeremy Frost, 22, of Dorchester, Mass., was charged with assault and aggravated drug trafficking. The drug is suspected to be crack cocaine.

Camilia Clark, 23, also of Dorchester, Mass., was charged with assault. Tiana Clark, 28, of Medford, Mass., was charged with aggravated assault.

The incident occurred about 8:30 a.m at 546 Ocean Ave., said police Lt. Gary Rogers. The three who were arrested entered an apartment where a dispute and the assaults occurred, he said.

Three people, including Tiana Clark, were taken to a hospital for treatment of minor stab wounds, and a fourth person was taken with an ankle injury, Rogers said. He would not release the names of the victims. All were treated and released.