Yannick Roux/@yanroux
A large evacuation has taken place in the London Bridge area of central London.
Specialist officers from the Metropolitan Police are investigating reports of a suspicious object.
Several images have been posted on Twitter showing people gathering outside following the evacuation.
Yannick Roux tweeted: "Lots of buildings being evacuated near London Bridge. Police not allowed to comment."
Gary Haines said: "Just been evacuated from @ProstateUK HQ after a bomb scare at London Bridge. Police carrying out thorough investigation."
Lots of buildings being evacuated near London Bridge. Police not allowed to comment. pic.twitter.com/FnV8tXEf1p
- Yannick Roux (@yanroux) December 1, 2015
What's going on? Hays Lane london bridge cordoned off by police pic.twitter.com/jTA4G25WqZ
- Jack Waterman (@JackAWaterman5) December 1, 2015