Pakistan won't handover Mumbai suspects to India
India has been demanding custody of some Pakistani nationals who are suspected to have been involved in the Mumbai terror attacks which killed 170 people.
Fifteen people were arrested on Sunday after authorities raided a camp run by Islamic charity Jamaat ud Dawa, which many people believe has links to militant group Lashkar e Taiba.
"The arrests are being made for our own investigations," said Islamabad's foreign minister Shah Mehmood Qureshi.
"Even if allegations are proved against any suspect, he will not be handed over to India.
"We will proceed against those arrested under Pakistani laws."
Heavily-armed groups went on the rampage in India's financial capital at the end of November.
More than 170 people were killed, including nine gunmen. One gunman survived and is in custody.
The deaths have soured ties between the nuclear-armed neighbours, who have fought three wars since independence from Britain.
India has said all 10 gunmen came from Pakistan and handed Islamabad a list of 20 terror suspects, with demands for their arrest and extradition.