Hamas movement reiterated on Monday its commitment to the principle of non-interference in Egypt\'s internal affairs. Ziyad al-Zaza, the deputy head of the Hamas government and finance minister, said the movement\'s concentration is on combating the Israeli occupation. He called for forming a joint committee with Egypt to probe accusations leveled against the movement of interfering in the Egyptian affairs. He also urged finding a \"political channel\" along with the \"security channel\" to promote relations between the Gaza Strip and Egypt.