2014年CRI 乌卢甘斯克州政府大楼发生爆炸 巴勒斯坦联合政府就职（在线收听）

At least five people have been killed in an explosion at a rebel-held local administration building in Ukraine's eastern city of Lugansk.

Leaders of the self-proclaimed Lugansk People's Republic say a "fighter jet attack" is possibly behind the explosion.

Witnesses say Ukrainian fighter jets were seen flying over the building prior to the incident.

However, a spokesman of the government's military operation in eastern regions has ruled out the possibility of Ukrainian troops involvement.

Meantime, Russia has circulated a draft resolution on the humanitarian situation in the southern and eastern parts of Ukraine among members of the UN Security Council.

It calls for an immediate halt to the violence and practical negotiations.

However, the US has reacted to Russia's proposal, announcing it will double military assistance to Ukraine.

Palestinian authorities have sworn-in a new unity government, ending 7 years of internal division.

Shortly after the government was announced, Israeli authorities announced a series of sanctions, including an end to negotiations with the Palestinians.

The new deal ends a rift between Hamas and Fatah. The Israeli government considers Hamas to be a terrorist organization.

The current Palestinian leadership says it will respond to the Israeli sanctions, saying it cannot let them pass without taking some sort of action.

The US, which has been attempting to broker a peace deal between the Israelis and Palestinians for several years, says it will work with the new unity government.