An air strike on a camp for people displaced by fighting in Yemen has killed at least 40 people on Monday, Reuters reports.

The attack near Haradh, which seemed to have been targeted at a nearby Houthi rebel base, was blamed on the rebels by Yemen’s foreign minister, Riyadh Yassin.

However Yemen's state news agency Saba, which is currently under the control of the Houthis, said the camp was hit by Saudi planes.

Saudi Arabia launched air strikes against Houthi rebels last week, after rebels increased the territory they held.

The capital Sanaa, held by the rebels since December, was hit by the Saudi air force throughout the day. Houthi fighters meanwhile are getting closer to the southern port city of Aden, the last major stronghold of the supporters of President Hadi.

“He was a global thinker, who saw things ahead of others. He was an advocate of economic progress, but also made tireless efforts to advance peace and stability in our region.”

A Somalian diplomat was among at least 20 people who died when Al Shabaab militants launched an attack on a hotel in Mogadishu.

The Maka al-Mukarama Hotel was targeted by a car bomb on Friday evening, before being stormed by armed suicide bombers, who all died in the attack.

Security forces retook the hotel on Saturday morning. Somalia's ambassador to the United Nations in Geneva Yusuf Mohamed Bari Bari died in hospital, after being admitted with serious injuries.

Information Minister Mohamed Abdi Mareye led a government delegation to the scene on Saturday morning.

The Nigerian elections continued for a second day, after technical problems hit around 300 polling stations.

About 300 out of around 150,000 were affected by the glitch, which left voters, including President Goodluck Jonathan, unable to cast their vote.

Talks with Iran on its nuclear programme are intensifying as the deadline for a deal at the end of the month draws close.

The talks, attended by Iran and the P5+1 group, the US, China, Russia, France, the UK and Germany, are intended to seek a deal to prevent Iran from seeking a nuclear agreement.

The US Secretary of State John Kerry and his German and French counterparts have cancelled their travel plans for the last few days of the talks, in order to push for a resolution ahead of the March 31 deadline.

Iran, which denies it is pursuing nuclear weapons, is hoping to achieve the lifting of international sanctions through a deal.

US officials said all parties, including Iran, had agreed "there needs to be a phased step by step reciprocal approach", so that Iran's steps to scale back its nuclear programme are met with a phased lifting of sanctions, the BBC said.

Syrian rebels captured the key Syrian city of Idlib from government forces, according to the Syrian Observatory for Human Rights.

The monitoring group said that the Ahrar al-Sham, Jund al-Aqsa and Nusra Front groups had taken the city on Saturday.

Nigeria’s army announced it has recaptured the town of Gwoza, thought to be the headquarters of Boko Haram.

The group have suffered a serious of setbacks in recent months and have lost a large amount of the territory it held since Nigeria's neighbours, Cameroon, Chad and Niger sent troops to help it earlier this year.

Seven former policemen in Chad have been sentenced to life imprisonment for torture, in the first trial of former president Hissene Habre's accomplices.

Under Mr Habre's rule from 1982 to 1990 thousands of people are thought to have been killed and tortured. He is currently being held in Senegal awaiting a war crimes trial.