However, an Associated Press photographer at the scene Tuesday saw two suicide attackers who were fatally shot and the remains of a third who had blown himself up.
The first and deadliest of Tuesday's attacks took place in Herat, a relatively peaceful province whose capital and many districts are already under Afghan security control.
A sport utility vehicle packed with explosives blew up outside the gate of the Guzara district police office. The remains of two men and a woman wearing a burqa were found inside the vehicle, officials said. Three security officers and nine civilians were killed, and more than 50 people, including children, were wounded.