Pakistan's National Security Adviser Lt Gen (retd) Nasser Khan Janjua conveyed the message to US ambassador David Hale during a meeting here today, Radio Pakistan reported.
Janjua told Hale that India's Research and Analysis Wing (RAW) and Afghanistan's National Directorate of Security (NDS) are "patronising terrorists groups to attack soft targets in Pakistan", it said.
The meeting was held to discuss the terrorist attack on Police Training College Quetta, counter-terrorism operations and cross-border attacks.
Pakistan has asked for US assistance to tackle the situation, the report said.
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Janjua informed the ambassador that the terrorists who attacked the police training college were constantly in contact with their leadership and handlers in Afghanistan.
The American ambassador was also briefed by the NSA on Pakistan's efforts to improve the current security situation in the country through implementation of the National Action Plan.
Hale condemned the attack in Quetta and offered his regrets. He also offered American support for the same.
The gunmen burst into the sprawling academy, targeting sleeping quarters home to some 700 recruits, and sent terrified young men aged between 15 and 25 fleeing.
Communication intercepts showed the attack was carried out by Al-Alimi faction of the Lashkar-i-Jhangvi (LJ) militant group, IG Frontier Corps (FC) Major General Sher Afgan said.
Separately, the militant Islamic State group claimed responsibility for the attack, according to the group's Amaq news agency. The training centre houses at least 600 cadets.
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