A Chicago man was arrested at Logan International Airport today after he allegedly claimed to have guns and explosives in his checked baggage.

About 5:35 p.m., State Police were called to Terminal E for a Southwest Airlines checkpoint with a report of a man making threats to Transportation Security Administration staff. The man, identified as Joseph Haynes, 22, allegedly told TSA personnel that he had "guns and bombs" in his checked bags, including an AK-47 assault rifle and hand grenades.

The incident triggered a large police response, including a State Police canine and Emergency Ordinance Disposal unit. The checked baggage was removed from Southwest Airlines Flight 3627 bound for Chicago. No firearms or explosives were found.

Haynes was charged with making a false bomb threat and disorderly conduct. A woman traveling with Haynes was not charged. Her name was not released. The checkpoint was closed for about 20 minutes during the investigation.