PA helped extinguish fire in "'48-territories" (i.e., Israel) because it’s Palestinian land
Official Palestinian Authority TV - Dec. 5, 2010

 
Interview with the Director-General of the Palestinian Civil Defense, Ahmad Rizq, about the Palestinian participation in extinguishing the fire in the Carmel region:
PA TV News reader: "Have you received any criticism through the Internet or in statements as to why the [Palestinian] Civil Defense participates in extinguishing the fire in the '48-territories (i.e., Israel) or with the Israelis?"
Head of the PA civil defense, Ahmad Rizq: "I believe that the majority of the Palestinian people still think that this land [northern Israel] is Palestinian."
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Note: In December 2010, a major forest fire broke out in northern Israel. The PA sent fire-fighters and equipment to help contain the fire, drawing mixed reactions among Palestinians.