Five men have been detained by Afghan security forces who say they have thwarted plans for a huge attack in Kabul.
Explosives were stuffed into 400 bags and hidden under potatoes in the back of a Pakistan-registered truck on the outskirts of the capital, according to authorities.
Two Afghans and three Pakistanis are being held, an Afghan intelligence spokesman told reporters.
He said they had confessed to receiving training from men he claimed were Pakistani Taliban commanders with links to Pakistani intelligence.
“If 10,000 kilogrammes of explosives in a city with seven million people had been detonated, what could have happened?” Afghan National Directorate of Security spokesman Shafiqullah Tahiri asked a news conference.
Afghanistan is still reeling from last weekend’s Taliban blitz on Kabul which targeted Western embassies, NATO headquarters and parliament.
Pakistan denies supporting or giving sanctuary to insurgents but the latest developments may further strain relations between the two countries.