There May Be More Mail Bombs, Feds Warn Cargo companies stop shipments from Yemen By Kevin Spak, Newser Staff Posted Nov 1, 2010 11:29 AM CDT 5 comments Comments A forklift moves boxes at the International Cargo Airport in Cologne, Germany. Investigators believe al-Qaeda moved some attempted mail bombs through Cologne. (AP Photo/Frank Augstein) (Newser) – US counterterrorism officials have warned local law enforcement and emergency personnel to be on the watch for suspicious mail, in the wake of last week’s foiled mail bomb plot. The FBI and Homeland security have warned post offices to flag packages of foreign origin without return addresses, or with excessive postage, according to a memo obtained by the AP. Many major cargo firms suspended shipments from Yemen today, and Germany refused to accept even passenger flights; one of the bombs was routed through Cologne en route to London. Officials in the United Arab Emirates meanwhile are tracing the serial numbers on the mobile phone and printer that were turned into a bomb and sent aboard a passenger flight in Dubai.