May 19 (UPI) -- Britain, Canada and France on Monday warned Israel that they will pursue "concrete actions" if it does not end renewed military operations in Gaza and lift restrictions on humanitarian aid.

"We strongly oppose the expansion of Israel's military operations in Gaza," the leaders of the three allied nations said Monday in a strongly worded statement.

"If Israel does not cease the renewed military offensive and lift its restrictions on humanitarian aid, we will take further concrete actions in response."

Prime Minister Benjamin Netanyahu of Israel launched a military offensive in Gaza late last week, which he followed with ending an 11-week blockade of aid into the Palestinian enclave.

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