UN Special Envoy for Syria, Staffan de Mistura, has implicitly appealed to Turkey to allow fighters across the Syria border to protect the city of Kobani from Islamic State.

Speaking at a press conference in Geneva on Friday, Mistura stressed the dangers of an impending invasion of Kobani by Islamic State said,

"Please take action to protect the civilians, in this case of Kobani –Ayn al-Arab. Do we have an international scenario to justify any type of action?… Everyone who can should be doing what he can in order to control and hopefully stop this atrocious terrorist movement, especially when they are clearly indicating where they are going."

"We would like to appeal to the Turkish authorities in order to allow the flow of volunteers at least and their own equipment in order to be able to enter the city and contribute to a self-defence operation. And if they can, to support the deterrent actions of the collation through whatever means from their own territory."

International monitoring of the Ukraine-Russia border is “grossly inadequate”, said the US Ambassador to the Organisation for Security and Co-operation in Europe (OSCE) on Monday.

The OSCE’s chief observer said that the team was discussing the possibility of going to other border checkpoints in areas no longer controlled by Ukraine, reports the BBC.

“The current observation mission has access to about 1 KM of the international border,” said Daniel Baer, adding that the mandate of the mission needed to be expanded.

A draft resolution tabled at the United Nations General Assembly’s human rights committee encourages the Security Council to refer the human rights situation in North Korea to the International Criminal Court and target sanctions at those responsible for crimes against humanity.

The draft resolution, obtained by the Associated Press, calls for “effective targeted sanctions against those who appear to be the most responsible for crimes against humanity.”

Over 50 people have been killed when a suicide bomb went off in the city centre of Yemen's capital on Thursday.

The suicide bomber approached the Houthi check point wearing a suicide belt, said a policeman near by.

"He then exploded amidst the [Houthi] security and ordinary people nearby," the policeman told Reuters.

The blast appears to be have been targeted at a planned protest by Houthis, who are a Shia group, demanding a new government and more political autonomy.

The Russian Foreign Minister, called on international bodies to become involved in an investigation into war crimes committed in Ukraine, reports Press TV.

Sergey Lavrov made the remarks in a meeting with his Finnish counterpart on Monday.

“Judging by the fact that no progress was made in investigating these incidents, it is possibly time for international organisations, such as the Organisation for Security and Cooperation in Europe (OSCE) the Council of Europe and the United Nations to take responsibility of ensuring an unbiased and fair investigation,” he said.

Ukraine has faced questions regarding several mass graves found in the eastern regions by separatist militants.

Coalition airstrike over Kobane city centre on Wednesday afternoon. Photograph Nizar Mistefa

Airstrikes by the US led coalition against Islamic State militants continued on Wednesday, as fighting continued inside Kobane and Kurdish officials warned that the city was on the brink of falling to Islamic State militants.

Air strikes were seen targeting the south-east and central part of Kobane, Nizar Mistefa, a Kurdish photographer situated inside Turkey by the Kobane border told Tamil Guardian on Wednesday.

On Tuesday, the US-led coalition carried out its most extensive set of airstrikes against the Islamic State targets, who entered the eastern side of the city, raising their black flag.

Coalition airstrike Wednesday afternoon over Mishtar Noor Hill in the south-east part of Kobane. Photograph Nizar Mistefa