The nuclear agreement between Western powers and Iran was broadly welcomed by politicians, former world leaders and Middle East experts.
Sri Lanka is putting on a show ahead of Friday's Commonwealth summit - but it is being overshadowed by accusations of human rights abuses.
William Hague and his Friends of Syria counterparts have agreed to "provide urgently all the necessary material and equipment" to rebels.
Foreign Secretary William Hague has called on Sri Lanka to carry out a "credible and independent" investigation into allegations of sexual violence against women and children by the country's security forces during and after the civil war.
Mr Hague said, "Accountability for sexual violence is critical to reconciliation and stability in Sri Lanka.
"I'll be urging the government to do more at the Commonwealth Heads of Government Meeting".
The call came ahead of Friday's opening of the summit in the Sri Lankan capital of Colombo, which the Foreign Secretary and Prime Minister David Cameron will attend despite calls for a boycott from Labour and campaigners from the UK's Tamil community.
Foreign Secretary William Hague has expressed his concern over UK journalists being blocked from going to north Sri Lanka by protesters.
A team from Channel 4 News were escorted away by police after a group of people blocked their train.
Channel 4 News editor Ben de Pear tweeted: "It seems it is mob rule in Sri Lanka, albeit orchestrated by the authorities to prevent free press access to the north of Sri Lanka.
"We have left the train in order for the hundreds of other people on it to continue their journey north."
Mr Hague also tweeted: "We have repeatedly pressed for media freedom throughout Sri Lanka especially CHOGM (Commonwealth Heads of Government Meeting). Urge government to let journalists report as promised."
Channel 4 previously broadcast three documentaries which examined the alleged war crime by both the government and Tamil Tigers in Sri Lanka.
An interim deal on nuclear power with Iran would involve limited, proportionate sanctions relief, the Foreign Secretary has said.
William Hague said the "complex and detailed discussions" with Iran could still reach a resolution, but that the UK would not lift all existing sanctions at once.
He also confirmed that the newly-appointed non-resident charge d'affaires would visit Iran next month.
The next round of talks begin on 20th November.
Foreign Secretary William Hague has tweeted that he is heading to Geneva to join the Iran nuclear talks.
Heading to Geneva for #Iran nuclear talks
Foreign Secretary William Hague has said he welcomes the release of Libyan Prime Minister Ali Zeidan:
I welcome release of Libyan PM. We will work with Libyan gov on ensuring the transition remains on track and insecurity is addressed
In an earlier tweet, he said he has spoken to US Secretary of State John Kerry this morning about the recent developments.
Britain has called for the immediate release of the Libyan prime minister after he was seized by armed men.
Foreign Secretary William Hague tweeted:
I condemn the abduction of Libya's Prime Minister and call for his immediate release. Gov and people of #Libya have our full support
A statement added:
"Our ambassador is in touch with other members of the interim government. It is vital that the process of political transition in Libya is maintained. The government and people of Libya have our full support at this concerning time."
Addressing the House of Commons on the Middle East, Foreign Secretary William Hague said he will appoint a non-resident chargé d’affaires tasked with building relations with Iran.
Following the arrest by Russian authorities of 30 Greenpeace activists, including six British Nationals, the Foreign Secretary said that he had raised the case with the Russian Foreign Minister Lavrov last week.
William Hague has also met the Greenpeace Executive Director John Sauven. Mr Hague said the Foreign Office would continue to raise specific concerns Greenpeace had about due process or welfare with the Russian authorities.
Consular officials have met the British Nationals who had been arrested and remain in regular contact with them.
Foreign Secretary William Hague said it was "very understandable" that Ed Miliband would want to defend his late father, Ralph Miliband, in the "fierce argument" over a story in the Daily Mail which claimed he hated Britain.
Hague said it was "very understandable that In any walk of life, not just in politics, that a son jumps to the defence of parents".
He added: "It is a fierce argument that is going on. I don't know enough about Ed Miliband's father to weigh in but it is very understandable."