The Afghan Taliban says they will do everything in their power to try to kidnap or kill Britain's Prince Harry, who arrived in Afghanistan last week to fly attack helicopters.

Queen Elizabeth's grandson is in Afghanistan on a four-month tour, based out of the volatile Helmand province, where he will be on the front line in the NATO-led war against Taliban insurgents.

A Taliban spokesman told Reuters, "We are using all our strength to get rid of him, either by killing or kidnapping."

In Brussels NATO Secretary General Anders Fogh Rasmussen dismissed the threat.

(SOUNDBITE) (English) NATO SECRETARY GENERAL ANDERS FOGH RASMUSSEN SAYING:

"Yeah, well, obviously that is not a matter of concern. I mean, we do everything we can to protect all our troops deployed to Afghanistan, whatever might be their personal background."

The 27-year-old prince, who is third in line to the throne, took up his new role two weeks after being photographed frolicking naked in Las Vegas.

Known in the military as Captain Wales, the Prince first served in Afghanistan in 2008, but his tour was cut short when a news blackout designed to protect him while he was on the front line collapsed.