The Taleban says it is determined to kill Britain's Prince Harry, who is serving in Afghanistan four years after his previous deployment was cut short over security concerns.
A spokesman said the group has a "high-value plan" to attack the third in line to the British throne in southern Helmand province, one of the toughest battlefields in the 10-year war.
"We will do our best to kill Prince Harry and Britain's other troops based in Helmand," the spokesman said.
"It is not important for us to kidnap him. We will target him and we will kill him.
"Whoever fights in our country is our enemy and we will do everything possible to kill him."
The 27-year-old Apache helicopter pilot, who was photographed naked at a party in Las Vegas last month, will spend four months at the heavily fortified Camp Bastion in Helmand.
His squadron "will provide surveillance, deterrence and, when required, close combat attack capabilities."
In 2008, the royal was hastily withdrawn from Afghanistan when a news blackout surrounding his deployment was broken.