Customs officials last year confiscated more drugs at Dutch ports, borders and airports, with cocaine accounting for the bulk of the seizures.

Between 2008 and 2012, officials made almost 15,000 drug seizures, website nu.nl said on Thursday, quoting finance ministry figures.

Cocaine accounted for over 14,000 of the finds. The ministry said this is due to the tough controls on travellers arriving from South and Central America and the Caribbean. The average cocaine seizure was almost 3 kilos.

In 2008, 407 kilos of raw materials to make drugs were confiscated, but this rose to 6,230 kilos by last year.