Wimbledon's Centre Court was evacuated after the close of play on Wednesday evening.
An announcement was made over the public address system requesting that anyone remaining inside the building should immediately leave.
A further announcement was made requesting that anyone on the tea lawn between Gates 4 and 5 should also evacuate.
There was no obvious indication of a fire inside Centre Court.
Minutes later, everyone within the All England Club grounds were ordered to leave immediately, with security staff conducting a swift evacuation.
Source: PA
