Khalifa International Stadium or also known as National Stadium is a multi-purpose stadium. The stadium was originally opened in 1976, but was fully renovated and expanded in 2005 prior to the 2006 Asian Games in order to increase its capacity from 20,000 to 40,000. A partial roof has also been built on the Western side of the stadium, along with a large arch on the Eastern side which was used as a platform for the launch of fireworks during the 2006 Asian Games opening ceremony. Before its renovation it was used mostly for football matches, but it includes facilities for many other sports. Since 1997 it hosts the annual track and field event Qatar Athletic Super Grand Prix, now as part of the IAAF Diamond League. It is currently the stadium of Qatar national football team.