Authorities in Canada and the U.S. are investigating a reported hijacking of a Canadian fishing vessel.

The boat was reportedly hijacked on Tuesday afternoon by two men, believed to be Canadian citizens, who were armed with a knife.

According to a statement issued by U.S. Border Patrol, three men entered a marina in Queenston, Ont. on the Niagara River at 11 a.m. on Tuesday, and approached a father and his adult son to enquire about a fishing charter.

The son agreed to take them for a fee, but noticed none of the men seemed dressed for the weather. One of the men walked off, and the son left with the other two, heading along the Lower Niagara River.

As the boat captain steered the boat toward Lake Ontario, the men asked the captain to steer the boat closer to shore so they could take a photo, according to the statement.

When the captain told them they couldn't get closer to the U.S. shoreline, one of the men pulled out a pocket knife and demanded he bring the boat to shore.

The captain co-operated with their demands, letting them off the boat near the Fort Niagara State Park, in the backyard of a residence in Youngstown, N.Y. As they left the boat and fled on foot, both men pulled out their cellphones and began making calls.

After the men fled, the captain brought his boat to the coast guard station in Niagara, N.Y. to report the incident. A crew at the coast guard station searched the shoreline, but could not find any suspects.

The captain and crew were escorted by a coast guard crew back to Queenston after filing a report.

The U.S. Coast Guard is working with Homeland Security, U.S. Customs and Border Protection Agency, Niagara County Sheriff's Office Niagara Regional Police, Royal Canadian Mounted Police and the Canadian Border Services Agency to locate the men.

William Evans of the Niagara County Sheriff’s office told CTV News that the men have been described as being Caucasian and in their 20s. One of them is approximately 6-foot, 175 pounds, and was wearing a blue coat, brown track pants and a light brown hat at the time of the incident. He was carrying a new silver iPhone and a brown leather satchel. He was described as having a French accent.

The other is approximately 5-foot-11 and 200 pounds with black hair and a short beard. He spoke with a New Jersey-style accent and was wearing a black sweater, black track pants and white Nike sneakers.

Anyone with more information is asked to contact Evans of the Niagara County Sheriff’s Office at 716-438-3394 or 716-438-3327.

Witnesses can also report suspicious activity to the U.S. Border Patrol at 1-800-331-0353.