A New Zealand teenager was today arrested on suspicion of stealing millions of pounds from bank accounts around the world and of being the ringleader of a hacking network which infiltrated more than 1.3m computers.

The 18-year-old, from Hamilton, North Island, was taken into custody and several computers were seized, said the head of the country's police e-crime unit, Martin Kleintjes.

The teenager cannot be named for legal reasons, but uses the online identity "Akill". He was later released without charge, but police said they expected to interview him again.

Guardian Unlimited