Hospital staff and rescue workers move the body of a foreign tourist killed by militants near the Nanga Parbat peak, from an ambulance to a hospital morgue in Islamabad, in this June 23, 2013 file photo. [Photo/Agencies]

ISLAMABAD - Tourists who were climbing Pakistan's second-highest mountain when 11 people were killed at their base camp say they are waiting for equipment to be returned to them before they can go home.

The climbers spoke Tuesday at a memorial service in Islamabad for the 10 foreign climbers and a Pakistani tour operator who were killed Saturday when militants attacked their camp.

The attack came at the height of the climbing season in what is considered one of Pakistan's most peaceful regions.

Polish climber Aleksandra Dzik said the climbers were evacuated from base camp by helicopter and only allowed to take one backpack with them because of weight restrictions.

She said they hope army helicopters can bring their supplies down or porters allowed up to retrieve them.