Al-Qaeda in Pakistan was behind last week's assassination attempt on Afghan President Hamid Karzai, according to Afghanistan's intelligence chief.
The head of Afghanistan's National Directorate of Security, Amrullah Saleh, said foreign governments should put pressure on Pakistan to destroy militant bases within its borders.
Taliban gunmen fired rocket-propelled grenades and small arms at a state parade last Sunday, sending Mr Karzai, his cabinet and military top brass as well as foreign diplomats diving for cover.
Three people were shot dead before Afghan troops killed three Taliban attackers.
Investigations by Afghan security forces showed that at least two officials from the defence and interior ministries were involved in the attack, Mr Saleh said.
The officials suspected of involvement have been arrested in recent days.
