The International Monetary Fund (IMF) chief Lagarde said on Sunday that she is disappointed with the inconclusive outcome of talks with Greece, but underscored the IMF's commitment to continue to engage with the Greek authorities.

The IMF chief said in a statement that she had briefed the IMF executive board on the inconclusive outcome of the discussions on Greece, and was disappointed with it.

She stressed that the IMF is willing to continue talks with the Greek authorities, if Greece can implement "appropriate structural and fiscal reforms supported by appropriate financing and debt sustainability measures".

In the statement, she said she welcomed the statements of the Eurogroup and the European Central Bank to make full use of all available instruments to preserve the integrity and stability of the euro area.

Greece will be in arrears to the IMF if it fails to make 1.7 billion U.S. dollars of debt repayment due June 30.