Stock indices closed lower on the uncertainty over the Greek debt crisis. Greece said last week that it will bundle its IMF loans repayments.

Greek Prime Minister Alexi Tsipras said to the Greek parliament last Friday that creditors' proposal is "unrealistic".

Greek Finance Minister Yanis Varoufakis and his German Finance Minister Wolfgang Schaeuble are due to meet in Berlin later in the day.

Meanwhile, the economic data from the Eurozone was mixed. Market research group Sentix released its investor confidence index for the Eurozone on Monday. The index fell to 17.1 in June from 19.6 in May, missing expectations for a decline to 18.7. It was the lowest level since February.

The Eurozone's recovery was offset by the uncertainty over the Greek debt crisis and a stronger euro.

German investor confidence index plunged to 26.8 in June from 28.2 in May due to a stronger euro, a slower global economic growth and higher long-term yields.

German industrial production rose 0.9% in April, exceeding expectations for a 0.5% gain, after a 0.4% decline in March. March's figure was revised up from a 0.5% drop.

The output of capital goods climbed 1.5% in April, energy output rose 1.4%, the production in the construction sector gained 1.3%, while the production of intermediate goods was up 0.7%.

The output of consumer goods declined 0.9%.

Germany's seasonally adjusted trade surplus increased to €22.3 billion in April from €19.4 billion in March. March's figure was revised up from a surplus of €19.3 billion.

Exports climbed at a seasonally and calendar-adjusted 1.9% in April, while imports declined 1.3%.

Germany's current account surplus fell to €19.6 billion in April from €27.3 billion in March. March's figure was revised down from a surplus of €27.9 billion.

The European Central Bank (ECB) Governing Council Member Christian Noyer said on Monday that quantitative easing seems to work. But he added that European governments needed to speed up their structural reforms.

The International Monetary Fund (IMF) released its gross domestic product (GDP) forecasts for Spain on Monday. The IMF expects the Spanish economy to expand at 3.1% this year and 2.5% in 2016.

Indexes on the close:

Name Price Change Change %

FTSE 100 6,790.04 -14.56 -0.21 %

DAX 11,064.92 -132.23 -1.18 %

CAC 40 4,857.66 -63.08 -1.28 %