Canadian manufacturer RIM has said that the recent service outages experienced by BlackBerry users around the globe were the result of a core switch failure.

Starting Monday morning, BlackBerry users in Europe, South America, Africa, India and the Middle East were unable to browse Internet and send & receive messages and emails.

Confirming the outages, RIM said, "Some users in Europe, the Middle East and Africa, India, Brazil, Chile, and Argentina are experiencing messaging and browsing delays."

Affected smartphone users took to social networking sites like Twitter to express their frustration and ask the Canadian company to restore the services as soon as possible.

However, no problem was experienced by BlackBerry users in the United States.

The outages occurred due to a failure in the company's own infrastructure. RIM said a transition to a back-up switch failed to function as tested, and caused a massive backlog of data.

The company assured that they were working to restore normal services at the earliest.