Tammun Violence: Israeli Shelling Claims Lives
Israeli military arrested 'terrorists' in Tammun.
Vehicle sped toward troops, causing gunfire.
Khaled (12) and Mustafa survived; soldiers beat injured children.
Israeli military investigating shooting.
Palestinian Foreign Affairs Ministry condemned killings.
Rights groups said movement curbs delayed ambulances.
West Bank violence rose since Hamas attacks, 1,045 killed (8 by settlers).