French President Francois Hollande demanded that the United States immediately stop its alleged eavesdropping of the European Union.

French President Francois Hollande demanded that the United States immediately stop its alleged eavesdropping of the European Union.

According to weekend reports, U.S. intelligence agencies have bugged EU offices in three cities.

Hollande said on Monday during a trip to western France, "We cannot accept this kind of behavior."

"We demand that this cease immediately," he added.

Hollande further asked for an immediate explanation.

In turn, Germany expressed shock Monday over reports of US spying on European institutions.

The spokesman of the German government considered that the U.S. and the EU are partners and have to restore mutual trust.

The EU has also been strongly astonished by the spread data about the alleged surveillance and asked the U.S. to explain them.

The Guardian newspaper mentioned in an article late on Sunday that the United States had also targeted non-European allies including Japan, South Korea and India for spying.

U.S. Secretary of State John Kerry confirmed that EU High Representative Catherine Ashton had raised the issue with him in a meeting in Brunei but gave no further details of their exchange.

"I have yet to see details of the newspaper allegations," he said.

Kerry, however, asserted that many nations undertake lots of different kinds of activities to protect their national interests.