Suspected Taliban militants Friday blew up a ladies health center and shot dead a trader, accused of spying for the US troops in Afghanistan, said security officials. The ladies health center was blown up in Hamzoni district of North Waziristan tribal agency, officials told KUNA. However, they said there were no casualties as at the time of explosion, no body was in the center. "The explosion badly damaged the center building", they added.Meanwhile, militants shot to death a local carpet trader in the main market of Miramshah, the regional headquarters, for spying on them for the US troops, officials said further. Militants in last two weeks have killed at least five US spies in the agency. In a related incident, militants damaged a vehicle of local Non-Governmental Organization (NGO) near Miramshah, officials said. They added that the driver received serious injuries but is said to be in stable condition.