The Secretary-General of the United Nations, Antonio Guterres, welcomed on Sunday the Egyptian-mediated ceasefire agreement between "Israel" and Gaza, calling on all concerned parties to abide by it.

"The Secretary-General welcomes the ceasefire agreement between "Israel" and Gaza and calls on all parties to abide by it," UN Spokesperson Stephane Dujarric said in a press briefing.

The armistice agreement between "Israel" and the Palestinian Islamic Jihad movement entered into force with Egyptian mediation, starting at 11:30 pm on Sunday.

This comes after Al Mayadeen private sources confirmed, earlier, that an agreement had been reached on a ceasefire in the Gaza Strip, with the fulfillment of the Palestinian Islamic Jihad movement's demands in full.

Biden welcomes the ceasefire 

US President Joe Biden welcomed the ceasefire aimed at ending the Israeli aggression in Gaza, urging "all parties to implement it fully."

In a statement, the President stated that over the previous three days, Washington had worked with Israeli officials, the Palestinian Authority, and numerous countries in the region to "promote a fast settlement to the issue."

"We also call on all parties to fully implement the ceasefire, and to ensure fuel and humanitarian supplies are flowing into Gaza as the fighting subsides," Biden added.

The President also "bemoaned the harm and death of people in Gaza," but he did not hold "Israel" accountable for its crimes. At least 41 Palestinians have been martyred in the conflict, including 15 children.

"The reports of civilian casualties in Gaza are a tragedy, whether by Israeli strikes against Islamic Jihad positions or the dozens of Islamic Jihad rockets that reportedly fell inside Gaza," Biden said.

He added that "the United States has worked over the past 72 hours with officials in Israel, the Palestinian Authority, Egypt, Qatar, and Jordan, to encourage a speedy resolution of the conflict."

He stated that his support for "Israel"'s security is long-standing and unwavering, including its right to "defend itself against attacks."

Read next: Israeli soldiers flee locations near Gaza: Video

The Israeli occupation committed several massacres on Saturday and Sunday during the bombing of the Gaza Strip, the last of which was near the Al-Faluja cemetery, and before that, a massacre in Jabalya camp resulted in the death of five, including three children.

The writer in political and military affairs, Ahmed Abdel-Rahman, revealed to Al Mayadeen that the Israeli government seeks to help America determine some coordinates in the Gaza Strip.

The Secretary-General of Islamic Jihad, Ziyad al-Nakhalah, said on Sunday that it was the Israeli occupation that sought vigorously to reach an agreement on a ceasefire, adding: "If the enemy does not abide by our conditions, we will consider the agreement void and we will resume fighting again."

The Israeli occupation began aggression on the Gaza Strip on Friday, and Al-Quds Brigades announced that Tayseer Al-Jaabari, a military commander in the northern Gaza Strip, had been martyred.

The Palestinian Resistance factions mourned the martyrs of the Israeli aggression on the Gaza Strip, stressing that the occupation shall bear all the consequences of the aggression. 

On the other hand, Al-Quds Brigades launched an operation in response to the Israeli occupation's aggression on the Gaza Strip, by launching salvoes of rockets toward the occupied Palestinian territories.

Read next: Al-Quds Brigades responds to latest assassinations using 130 missiles

Cuba condemns Israeli attacks on Gaza

On Sunday, Cuban Foreign Minister Bruno Rodriguez affirmed his country's condemnation of the Israeli aggression against the Palestinians in Gaza.

In a tweet on Twitter, Rodriguez said, "We condemn in the strongest terms the new Israeli military operation against the Gaza Strip, which caused the death of innocent civilians."  

"This criminal act constitutes a threat to stability and peace in the Middle East," he added.

Condenamos en los términos más enérgicos la nueva operación militar de Israel contra la Franja de Gaza que ha provocado la muerte de civiles inocentes. Esta criminal acción constituye una amenaza a la estabilidad y la paz en la región del Medio Oriente. pic.twitter.com/K7GhoNAj9L

— Bruno Rodríguez P (@BrunoRguezP) August 6, 2022