KIEV (REUTERS) - A senior aide to Ukraine's President Petro Poroshenko said on Sunday Kiev had reached agreement during the Nato summit in Wales on the provision of weapons and military advisers from five member states of the alliance.

"At the Nato summit agreements were reached on the provision of military advisers and supplies of modern armaments from the United States, France, Italy, Poland and Norway," the aide, Mr Yuri Lytsenko, said on his Facebook page.

He gave no further details and it was not immediately possible to confirm his statement. Mr Poroshenko, whose armed forces are battling pro-Russian separatists in eastern Ukraine, attended the two-day summit in Wales that ended on Friday.

Nato officials have said the alliance will not send weapons to Ukraine, which is not a member state, but they have also said individual allies may choose to do so.

Russia is fiercely opposed to closer ties between Ukraine and the NATO alliance.