KARACHI, Pakistan — A large bomb exploded Monday outside the home of a senior police officer tasked with cracking down on the Taliban and other militants in Pakistan's largest city. The blast killed at least four people and left a crater 10 feet (3 meters) deep, said police.
The policeman targeted in the bombing in the southern port city of Karachi, Chaudry Aslam, was not harmed and appeared on local television shortly after the attack to blame the Pakistani Taliban.
"This is a cowardly act," said Aslam. "I'm not scared. I will not spare them."
The bomb exploded early Monday morning as many children were headed to a school located near Aslam's home in the Defense neighborhood of Karachi, an upscale residential area that rarely experiences militant attacks or other forms of violence that plague the city, Karachi police chief Saud Mirza said. It is unclear if any children were killed or wounded in the attack.
The blast blew out the windows of cars and neighboring homes in the area. Local television footage showed debris littered across a street near Aslam's home as ambulances responded.
At least four people were killed, said police officer Tanveer Ahmed.
Aslam is a top police officer in the Crime Investigation Department, which works to arrest Taliban fighters and other militants in Karachi, a bustling city that is home to some 18 million people and is also Pakistan's main commercial hub.
Karachi has not seen as many militant attacks as other major cities in Pakistan, but it is believed to be home to many Taliban militants who have fled army operations in the northwest near the Afghan border.