By Jonathan Davies

Greece's Prime Minister Alexis Tsipras has warned the country's creditors that it has no money to repay its debts, intensifying fears of it defaulting.

It comes after Greece was last week forced to use its own reserves to make a €750 million payment to the International Monetary Fund (IMF).

According to Greek newspaper Kathimerini, the Greek Prime Minister wrote to the IMF, European Central Bank president Mario Draghi and the European Commission's Jean Claude-Juncker days before the 12 May deadline, explaining that the payment would not be made unless Greece was granted emergency funds.

It is understood that Mr Tsipras was unaware of Greece's reserves, before the repayment was made.

Greece is facing €1.5 billion worth of repayments to the IMF in the first three weeks of June.