Gold and gold receivables held by euro zone central banks rose by 1 million euros to 363.249 billion euros in the week ending Sept. 9, the European Central Bank said on Tuesday.

Net foreign exchange reserves in the euro system of central banks rose by 0.3 billion euros to 176.9 billion euros, the ECB said in its regular weekly consolidated financial statement.

Gold holdings rose because of purchase by one euro zone central bank, consistent with the 2009 Central Bank Gold Agreement, the ECB said.

The combined balance sheet of the ECB and the 17-national euro zone central banks, grew to 2.086 trillion euros, the statement showed. Capital and reserves totalled 81.481 billion euros.