Many inconvenient occurred: trains, trams and planes ground to a temporary halt Friday in and around Amsterdam; at Amsterdam’s Museum Square, fire fighters had to free a man, woman and young child in a stroller who were trapped in an elevator at an underground supermarket; hospitals were forced to switch to backup power. Even the Schiphol Airport, Europe’s fourth largest airport, halted and many flights were cancelled. The cause of this incident was an outage at a high-voltage power station in the town of Diemen, just outside Amsterdam. enneT has stated that power has been restored to some parts of North Holland, however, significant parts of the region are still without electricity. Police chiefs in Amsterdam say they are putting all their officers on the streets because alarm systems are not working. The outage was the largest in recent memory.