Doctors Without Borders says healthcare facilities 'cannot become targets' after Israeli forces struck a hospital and ambulance in Gaza

• Israel declared "a state of war" Saturday after a surprise attack from Hamas.
• Doctors Without Borders said Israeli forces struck a hospital and an ambulance, killing two people in Gaza. 
• The organization said "healthcare facilities cannot become targets" and "must remain a sanctuary." 

Doctors Without Borders says healthcare facilities "must remain a sanctuary" after Israeli forces struck a hospital and ambulance amid rising tensions in Gaza.