Boris Johnson meets with Leo Varadkar in Dublin, Ireland, on Monday. Phil Noble/Reuters

Irish Prime Minister Leo Varadkar said on Monday that the European Union had not received from Britain any alternatives to the so-called backstop provision in the Brexit divorce deal.

"We haven't received such proposals to date," Varadkar said during a visit by UK Prime Minister Boris Johnson ahead of their first face-to-face talks since the British leader took power in July.

Meanwhile, UK Prime Minister Boris Johnson tells Irish leader Brexit deal can be done so UK can leave European Union by Oct. 31.