Pakistan Muslim League-Nawaz (PML-N) President Nawaz Sharif will visit Gayari Sector of Siachen on April 17. A news channel quoting sources said that the PML-N president would visit the site on April 17 to express solidarity with the Pakistani soldiers who were buried under an avalanche and their families. Pakistan Army said on Saturday that assistance was also being sought from abroad and teams from Germany, Switzerland and China had already reached there. The army said the avalanche had fallen during 3:00 am to 5:00 am in the night from the height of 18,000 feet.As many as 400 troops and some 60 civilians are busy in rescue and search operation.