In 2002, the United States Treasury Department contacted the Swiss government by letter in an effort to convince authorities that Al Taqwa Bank had set up a special line of credit for Al Qaeda financial kingpin Mamdouh Mahmoud Salim to finance terrorist attacks by various terrorist organizations, including Al Qaeda and Hamas.
In 2002, the US Treasury Department initiated correspondence with the Swiss government in an effort to persuade them that Al Taqwa Bank had established a financing arrangement for Al Qaeda's financial leader Mamdouh Mahmoud Salim to support terrorist operations by various organizations, including Al Qaeda and Hamas.