Any final nuclear deal with Iran must include commitment form Tehran to recognise Israel’s right to exist, said the Israeli prime minister on Friday.

In a statement released after a preliminary international agreement was reached on Iran’s nuclear programme, Banjamin Netanyahu, said,

Armed gunmen attacked military checkpoints on the Sinai peninsula, leaving 15 Egyptian soliers and two civilians dead.

The checkpoints, located near the border with Gaza in the town of Sheikh Zuweid, were attacked on Thursday by militants suspected to be part of Sinai Province, a group which last year pledged allegiance to Islamic State.

Dozens of soldiers, militants and civilians have been killed already this year in northern Sinai.

At least 147 people died in an attack on the Garissa University College campus by al-Shabab gunmen.

The four gunmen, who initially besieged the campus, targeting Christian students for executions, blew themselves up as the siege ended according to the Associated Press.

UN Secretary-General Ban Ki-moon condemned what he called a "terrorist attack" and said the UN was ready to help Nairobi to "prevent and counter terrorism and violent extremism".

The United States said it was offering the Kenyan government assistance to take on al-Shabab and would continue to work with others to take on the group.

Officials from the Palestinian Liberation Organisation (PLO) said that Islamic State militants had entered the largest Palestinian refugee camp in Syria, Yarmouk, which holds over 18,000 residents.

Militants within the Damascus refugee camp were attacking new arrivals throughout the day said the PLO in a statement on Wednesday.

The United Nations Relief and Works Agency (UNRWA) repeatedly called on Syrian officials to allow aid into the camp, adding,

Intense negotiations between the P5+1 and Iran have ended with an agreement, under which Tehran will reduce its uranium enrichment capacity in exchange for phased sanctions relief.

US President Barack Obama said a "historic understanding" had been reached with Iran.

The P5+1, the US, UK, France, China and Russia plus Germany - and Iran, have been in negotiations for months and a deadline to reach an agreement on March 31 was missed.

Under the deal, Iran will face more inspections than any other country, President Obama said.

"If Iran cheats, the world will know it," he said, adding that the deal was based not on trust but on "unprecedented verification".

Houthi militants in Yemen seized the presidential district of Aden and overtook the president’s residency on Thursday, reports Reuters.

The city in the south of Yemen was taken by the Houthis after a seven day struggle which included Saudi Airstrikes to curtail the Houthi advances.

A senior US military official plated down the likelihood of external ground troops being sent in from Saudi Arabia, stating,

The US government will resume full military aid to the Egyptian regime, which was suspended after the military coup in 2013 which saw then-head of the army Gen Abdul Fattah al-Sisi come to power.

Mr al-Sisi was informed in a phone call from President Barack Obama that F-16 fighter jets, missiles and M1A1 tank kits would be delivered.

"The president explained that these and other steps will help refine our military assistance relationship so that it is better positioned to address the shared challenges to US and Egyptian interests in an unstable region, consistent with the longstanding strategic partnership between our two countries," the White House said in a statement.

The statement said President Obama expressed his concerns about human rights abuses in Egypt.

Palestine has formally joined the International Criminal Court, an important step to pursue war crimes charges against Israel.

The Palestinian Authority signed the Rome Statute in January became the 123rd member of the ICC at a low-key ceremony in The Hague on Wednesday, attended by Foreign Minister Riad Malki.

On Wednesday, Human Rights Watch urged pressure by governments seeking to penalise the Palestinians for joining the ICC to end.