Hezbollah says it's carried out another attack on northern Israel.

The Israeli military confirmed several rockets had been launched from Lebanon, early on Monday.

An officer and a soldier were injured in the attack and have been taken to hospital.

King Abdullah of Jordan has called for further international efforts to prevent a regional expansion of the conflict.

His message came as Jordan's Foreign Minister met with the Iranian President to discuss the situation in the Middle East in a rare visit to Tehran.

During the meeting, the President reiterated that Hamas' political leader Ismail Haniyeh's assassination would not go unanswered. 

Israel's Prime Minister Benjamin Netanyahu has warned Iran and its allies that his government would exact what he called a “heavy price” if it was attacked.

Iran's blaming Israel for the assassination of Hamas' political leader, Ismael Haniyeh, in Tehran last week.

Hezbollah too has vowed to avenge the killing of a top commander by Israel last week.

And in the US, Joe Biden will convene his National Security team in the White House Situation Room to discuss developments.

It's being reported the US general in charge of the Middle East, General Michael Kurilla is in the region for talks in Gulf countries and Israel.

And King Abdullah of Jordan is also expected to speak with the US President.

Al Jazeera’s Zeina Khodr is monitoring developments in Lebanon's capital, Beirut, and Phil Lavelle is in Washington, DC for US reaction.

Ibrahim Fraihat is an Associate Professor of Conflict Resolution at the Doha Institute. He says that this is the closest point to a serious regional confrontation.