Turkish Prime Minister Recep Tayyip Erdogan has vowed a proper response to Israeli attacks on an international convoy which killed dozens of Turkish nationals.

“It should be known that we will not stay silent and unresponsive in the face of this inhuman state terror,” he was quoted as saying by AFP on Monday. 

He made the remarks in a short televised speech after the Israeli forces raided the Freedom Flotilla, killing at least 20 people, mostly Turks, and injuring 50 others.

“International law has been trampled underfoot,” Erdogan argued.

The premier also said that Turkey will call a NATO meeting over the deadly Israeli assault.

Meanwhile, the United Nations Security Council is scheduled to hold a meeting regarding the brutal assault later on Monday.

The humanitarian convoy was carrying thousands of tons of supplies and hundreds of politicians, activists and journalists.

The Flotilla was seeking to break Israel’s three-year-long blockade of Gaza and deliver basic necessities to the impoverished Palestinians living in the coastal enclave.