Rescue teams were awaiting an improvement in the weather Wednesday to resume the search for three Spanish climbers who went missing during the descent of the Gasherbrum-I peak in northern Pakistan.

"The weather is a mess," another member of the expedition, Sergio Ruedas, said from base camp.

Abel Alonso, Alvaro Paredes and Xevi Gomez made it safely to the 8,068-meter (26,469-foot) summit of Gasherbrum-I, but went missing as a storm came up suddenly during the descent.

The trio was last heard from on Monday, when they said via satellite telephone that they were together and had taken refuge fairly close to a camp.

The lack of contact since then may be due to the phone battery's having run down.

A fourth Spaniard from the same party, Alfredo Garcia, remained stuck Wednesday at Camp 3, about 800 meters below the summit.

Plans to send a helicopter aloft to search for Alonso, Paredes and Gomez were postponed to Thursday because of the rough weather, according to Said Anwar, head of Pakistani outfitting firm Lela Peak.

Spanish diplomats said they are in contact with the families of the missing climbers and that they are doing everything possible to expedite the rescue effort.

The missing men are all experienced climbers.

Gasherbrum-I, also known as Hidden Peak, is the world's 11th-highest mountain. EFE