The United Nations has criticized Israeli regime for putting pressure on the Gaza Strip, and said that such policies could start a new conflict between the regime and Palestinian resistance fighters.

The UN Special Coordinator for the Middle East Peace Process Nickolay Mladenov on Thursday warned against the situation in the besieged Gaza Strip and added that Yel Aviv must understand that its policies on Gaza escalate violence.

“Heat in the Gaza Strip is growing up,” said Mladenov while visiting Gaza.

He also criticized Israel for not doing enough to ease the crippling blockade on Gaza, and further questioned those who "believe that it’s possible to punish the Gaza Strip and keep it under blockade."

The UN official added that in order to restore calm, "we need to follow up many issues, mainly reconstruction."

“We are very much concerned over the slow process of reconstruction,” said Mladenov.

Tel Aviv imposed a siege on Gaza Strip in 2007. Since then, Israel has waged three wars on the besieged city.

The latest war against Gazans, which took place in 2014, left more than 2,000 Palestinian dead, including 577 children, over 11,100 others injured and thousands homeless.

Israel's fighter jets continue to carry out attack on Gaza from time to time and frequently bomb Gaza.