LONDON (Agencies) - The main US airbase supplying troops in Afghanistan could be closed down by the government of Kyrgyzstan in return for billions of dollars of Russian investment, says a report in "The Daily Telegraph." According to the report, President Kurmanbek Bakiyev is said to be preparing to announce the closure of Manas airbase, which acts as the main air hub for military supplies and troops travelling into Afghanistan. Coalition forces have already been forced to seek alternative supply lines into Afghanistan after the main Khyber Pass road from Pakistan has seen repeated closures after attacks by Taliban militants. The paper said that Manas would be closed in return for 1.3 billion pounds of Russian investment. The Kyrgyz president is expected to announce the closure before visiting Moscow later this month. Manas airbase, 20 miles from the Kyrgyz capital of Bishkek, was established in 2001 as US forces helped topple the Taliban regime in neighbouring Afghanistan. It now holds around 1,000 military personnel, but despite bringing in millions of dollars in rent, the US presence is unpopular with many in the country. The paper further said both Russia and China have also been angered by the presence of a US base in a strategic region they consider to be within their sphere of influence.