In light of the ongoing rocket fire on Israel from Gaza during the last several days, Israel’s Ambassador to the United Nations Ron Prosor on Tuesday issued a strongly worded letter to UN Secretary-General Ban Ki-moon and the Security Council, condemning the cross-border violence and asserting Israel’s right to defend itself.

“In the past two days, Hamas and other terrorists in Gaza have fired more than 150 rockets into our homes, schools, and cities,” wrote Prosor. “Israel holds Hamas fully responsible for all acts of terrorism flowing from Gaza,” the envoy continued.

Prosor warned that unless the rocket fire stopped there was a “serious danger of an even greater escalation” in “our very volatile region.”

“Israel’s leaders have been very clear: we are prepared to take all necessary measures to protect our citizens from Hamas terror,” said the envoy.

Prosor also highlighted Palestinian Authority President Mahmoud Abbas’s failure to condemn the violence.

“The Palestinian leadership also has a fundamental responsibility to clearly condemn Hamas terrorism,” Prosor wrote. “The silence that continues to echo from President Abbas’s office speaks volumes.”