British Prime Minister David Cameron talked over the phone on Tuesday with US President Barack Obama and Abu Dhabi Crown Prince Mohammad bin Zayad Al-Nahyan on issues of mutual concern.
Cameron received a phone call from Obama and both leaders welcomed the efforts taken by President Petro Poroshenko to establish a ceasefire in Eastern Ukraine, a spokesperson for the British premier said in a press release.
"They noted that while (Russian) President (Vladimir) Putin had called on the separatists to accept the ceasefire, we had yet to see concrete action from Russia to halt the flow of weapons across the Ukrainian border and to stop Russian training of separatist groups," the statement said.
"This is what the G7 had called on Russia to do and they reaffirmed their commitment to implementing further sanctions on Russia if these things don't happen," the statement added.
"The Prime Minister noted that he would discuss this issue with other European leaders at the European Council and would press for preparatory work on such sanctions to continue," said the statement.
The two leaders also "discussed the situation in Iraq and the grave threat posed by ISIL (Islamic State in Iraq and Levant) to the national security of both the United Kingdom and the United States.
"They both agreed that the Iraqi government needs to pursue a more inclusive approach that engages Sunni, Shi'a and Kurdish communities," the statement added.
Meanwhile, Cameron called the Crown Prince of Abu Dhabi Sheikh Mohammed and discussed the political and security situation in the Middle East region.
"Both leaders agreed that the ISIL onslaught in Iraq was of huge concern and that the Iraqi government needs to adopt a more inclusive approach," the statement noted.
"On Syria, they reaffirmed their support for the moderate opposition. The Prime Minister also raised the need for countries to work together to counter radicalization and to deal with the growing terror threat posed by Islamic extremism," the statement said.
"On Libya, both leaders agreed on the urgent need to find a political solution and the Prime Minister updated the Crown Prince on the work that the UK was doing to train Libyan troops and to broker a political solution through UK envoy, Jonathan Powell and his US counterpart David Satterfield," the statement concluded.