HOULTON, Maine -- U.S. border patrol officers have charged three Canadians with unlawful entry after they were seen walking in northern Maine, including one man facing child exploitation charges in Nova Scotia.

According to court documents filed June 1 with the U.S. District Court in Bangor, Maine, the three were apprehended May 31 near Houlton, Maine, which is not far from the border crossing at Woodstock, N.B.

The U.S. Customs and Border Protection agency alleges that Jesse Christopher Leblanc, Chelsey Ann Fitch of Fredericton and Aaron Byron Cumberland of Nova Scotia crossed the border at a spot that is not designated as a port of entry.

In an affidavit submitted to the court, border patrol agent Matthew McLellan said the three were seen carrying backpacks on the Canadian side of the border on a road parallel to the international boundary before they were spotted on a road in Maine that leads away from the border.

The agent said a fingerprint check later determined Cumberland is facing charges in Nova Scotia, including luring a child and invitation to sexual touching, though he had been released on conditions.

McLellan's affidavit says those conditions include an order that he remain in Nova Scotia and refrain from possessing any electronic device that can access the internet. The affidavit says Cumberland had a cellphone and a laptop with him when he was arrested.

McLellan said all three initially offered false identities, saying they had "no claimed countries of citizenship."

The agent said none of them was carrying proper identification.

"They also initially claimed to not believe in or recognize international borders or boundaries but believe that travel between countries should be free and uninhibited.