On Wednesday, Pakistan's Interior Minister said his government will cooperate with the United States in identifying the man arrested over the failed Times Square car bomb attack in New York.
[Rehman Malik, Pakistani Interior Minister]: English
"We really do not know how this boy has been motivated; and if he has done this thing we will be there to help the U.S. authorities to get them to justice."
U.S. officials arrested Faisal Shahzad, a 30-year-old Pakistani-born American late on Monday at JFK International Airport in New York.
He was removed from a plane as it was about to take off for Dubai.
The U.S. Ambassador to Pakistan met Pakistan’s foreign and interior ministers late on Tuesday night and talked about the issue.
[Rehman Malik, Pakistani Interior Minister]: English/Urdu
"We will launch a proper and formal investigation once we have a formal request from the U.S authorities."
A security official in Karachi said a friend of Shahzad and a few family members were arrested.
Malik says authorities are keeping a strict watch on people associated with Shahzad but denies the arrest reports.
[Rehman Malik, Pakistan Interior Minister]: English (Cut last two sentences)
"They are all on our radar but there's no detention whatsoever in the country."
Pakistan is a key ally of the United States and has arrested hundreds of al Qaeda operatives and handed over many of them to the United States.