Photo: AFP / TOLGA AKMEN
Six people have been arrested on suspicion of a plot to disrupt the London Stock Exchange.
London's Met Police said information suggested activists from the Palestine Action group were intending to target the exchange on Monday (local time).
The force said it was believed those involved were planning to cause damage and "lock on" in an effort to stop the building opening for trading.
Arrests were made in London, Liverpool and Brighton.
All six people are currently in custody.
The Met said the arrests were prompted by information shared by the Daily Express.
Detective Superintendent Sian Thomas said: "These are significant arrests. We believe this group was ready to carry out a disruptive and damaging stunt which could have had serious implications had it been carried out successfully.
"I'm grateful to the Express for their willingness to provide the information gleaned from their own investigation. It was instrumental in helping us intervene successfully.
"Having only been provided with the material on Friday afternoon we had limited time to act."
This story was originally published by the BBC.