The head of Germany's Federal Criminal Police warns that internet is raising the risk of terrorism and international crime.

Bundeskriminalamt chief Joerg Ziercke says criminal organisations and terrorist networks are increasingly cooperating via internet. Speaking at an annual police conference in Wiesbaden, he said such groups use internet to obtain materials that cannot be found locally and make payments through third parties. He emphasised that problems such as Mexico's drugs war, Somalia's piracy, the Italian mafia or people trafficking in Russia no longer are national problems but require an improved international approach.