Preliminary investigations by Afghan security forces on Tuesday indicated the possible involvement of Pakistani intelligence agencies in the deadly suicide attack on the Indian embassy in Kabul.
A report prepared by the Afghan Ministry of Defence said terrorists had entered the country after receiving training and logistical support from across the border, an indirect reference to Pakistan.
"The terrorists no doubt could not have succeeded in launching such an atrocity without full support of foreign intelligence," the summary of an Afghan cabinet meeting chaired by President Hamid Karzai released in Kabul said, citing the report.
Security was beefed up in and around the Indian embassy building, which was severely damaged on Mondays attack that killed 41 people, including a Brigadier-rank Defence Attache and a senior IFS officer, and wounded nearly 150 others.
Though the report did not name any foreign intelligence service, Kabul regularly accuses elements in Pakistan's intelligence agencies and the establishment in that country of supporting the Taliban and other insurgents.
The attack was the deadliest in Kabul since the 2001 fall of the hardline Taliban regime in a US-led invasion.