Federal prosecutors say a Portland man has pleaded guilty to driving women from Maine to Massachusetts so they could engage in prostitution.

Samuel Gravely pleaded guilty Thursday in U.S. District Court in Portland to a charge of interstate travel to promote prostitution.

Prosecutors say that in March, the 27-year-old Gravely drove the women to Boston where he expected them to engage in sex for a fee.

One of the women, upon learning what was expected of her, feigned illness, got away, and contacted police.

He was arrested in October.

Gravely is scheduled to be sentenced in March and faces a maximum of 10 years in prison.