2 men arrested on terror suspicion on Chicago Amsterdam flight

The two individuals identified as Ahmed Mohamed Nasser al Soofi of Detroit and Hezem al Murisi were allowed to board the flight from Chicago on Sunday night and one of them acted suspiciously, law enforcement authorities said.

According to ABC News, which was the first to report the incident, two US officials said the two appeared to be travelling with what were termed "mock bombs" in their luggage.

US airport security screeners found suspicious-looking items in the men's checked luggage late Sunday before they left the United States, including a cellphone taped to a medicine bottle, three cellphones taped together and watches taped together, The Washington Post reported.

"This was almost certainly a dry run, a test," one senior law enforcement official was quoted as saying. The two men did not have prohibited items on them, a law enforcement official told the Fox News, saying that although knives were found in their checked-in luggage, such checked-in items are not prohibited.

The individuals also were not on the no-fly list, nor were there any active warrants for their arrest, the news channel said. "Suspicious items were located in checked luggage associated with two passengers on United Flight 908 from Chicago O'Hare to Amsterdam," the Transportation Safety Administration said.