Yassir Ali Khan, shown in this undated photo, was arrested Saturday. (Associated Press)Two Ontario men wanted by the FBI for alleged involvement in a radical Islamist group were arrested after police went to homes in Windsor, Ont., Saturday morning.

Police in the border city say Mohammad Al-Sahli, 33, and Yassir Ali Kahn, 30, both from the Windsor area, were apprehended "without incident."

The two men were taken into custody and will appear before a Superior Court judge on Monday to face extradition to the United States on charges of conspiracy to commit federal crimes.

Members of the Immigration Task Force (ITF), working with Windsor city police and the local RCMP, apprehended the pair a day after a Superior Court judge in Ontario issued warrants for their arrest.

The arrests come just days after Mujahid Carswell, the son of an imam killed in a shootout with the FBI in Detroit on Wednesday, was arrested in Windsor.

Mohammad Al-Sahli was also arrested in Windsor. (Associated Press)

An FBI complaint, the result of a two-year-investigation, alleges all three men conspired to commit federal crimes.

Patrick Ducharme, the lawyer for the two men, said he was shocked to learn that a police tactical squad had surrounded two houses in the same area to make the arrests.

He said officers showed up with guns drawn in the presence of "terrified children" outside at least one of the homes.

"This could have been done very easily without any gunpoint arrest," Ducharme told CBC News.

He also said an arrest warrant was not necessary and he would have arranged to have the men turn themselves in, but he was waiting to hear from the lead U.S. prosecutor.

"I assured her (the prosecutor) and the FBI that they weren't fugitives, they weren't running, they were living peacefully in Windsor, and that they had retained me and I was to be their conduit and all I wanted to do was talk with them and she told me she would get back to me."

Ducharme described his clients as businessmen who are "alleged to have been in possession of and selling what is supposed to be stolen laptops."

"There's no indication that they are directly linked to anyone who seeks to overthrow the U.S. government or any government." he said.

The FBI alleged that the mosque leader they shot had been in charge of a U.S. Sunni group in Detroit who expressed hatred for the government and endorsed violence.