BERLIN (AP) — German Chancellor Angela Merkel is finally on her way to Argentina for the Group of 20 summit after a technical problem with her plane forced her to change plans and stay overnight in Bonn.

Merkel's office says she and a small delegation, including the finance minister took a different government plane to Madrid on Friday morning, and then boarded a commercial flight to Buenos Aires.

Merkel was en route Thursday night on an air force plane, but turned around over the Netherlands after the captain reported a technical problem.

The plane was diverted to the Cologne/Bonn airport and landed without incident.

The problem is being investigated but the air force says it appears to have been an electrical issue that could have affected the radio system and a fuel system.