Pakistan is to receive an additional 50 FC-1 Xiaolong fighter jets from China in a deal agreed during the recent visit of Pakistani Prime Minister Yousuf Raza Gilani to Beijing, China.

Details regarding the value of the deal have not been disclosed, however, the cost of each plane is between $20m and $25m.

The planes are cost-efficient replacements for aging aircraft such as the MiG-21 and Northrop F-5 Tiger, according to the Associated Press.

Defence Minister Ahmad Mukhtar said delivery of the JF-17 Thunder jets is likely to take place within six months.

The JF-17 Thunder is a single-engine multirole fighter that has been developed in cooperation between China and Pakistan.