KANDAHAR (AFP) - Afghan police said Sunday they had seized 17 tonnes of explosives hidden in paint and pickle tins at a customs office on the southern border with Pakistan. The explosives had been trucked from Quetta to Afghanistans Spin Boldak and were brought to the official customs point for tax payment, police chief General Shafique Afzali told AFP. Two people were arrested but Afzali said it was unclear if the pair were merely transporting the goods or were involved in militant activities. Further investigations will determine if the two arrested are involved or not, he said. The explosives are believed to have been destined to make crude roadside and suicide bombs - the weapon of choice for Taliban insurgents fighting Afghan and US-led NATO troops.