A man was stopped in southwest China driving a small van containing 960 kg of explosives, according to a newspaper report.
The man had driven more than 1,000km from Henan to Sichuan province and said he was delivering his cargo to mining operations, the Huaxi Metropolis Daily reported. The van was also carrying 1,440 detonators.
Police were quoted as saying that if the explosives had ignited during the journey it could have caused massive damage.
“The effect could have been so destructive if any accident happened on the way,” a police officer said.
He added that the driver had stopped to fill up with petrol during the journey, which could have sparked an even bigger explosion.
There are strict rules on the sale and distribution of explosives in China.
The detonators had no official distribution code and were likely to be illegal, police were quoted as saying.
The driver, 57, was stopped at a toll station in Guangyuan and has been detained by the police.