Southwark Council is flying the LGBT flag at half-mast to remember the 50 people who lost their lives in the Orlando club shooting on June 12.
In the early hours of Sunday morning Omar Mateen, who pledged allegiance to so-called Islamic State, entered a gay club in Florida and opened fire targeting the LGBT community.
Southwark Council is also opening books of condolence in the reception of its Tooley Street office, in Canada Water Library and in Peckham Library for anyone who wants to leave a message.
Councillor Peter John, Leader of Southwark Council, said: “The horrific attack in Orlando at the weekend has shocked the world, and Southwark sends its deepest sympathies to the victims and their families.
“This attack on a group of young people enjoying a night out, as with the Paris attacks, aims to drive fear into the hearts of people going about their everyday lives.
“It is also a despicable hate crime against the LGBT community. We must stand firm, celebrating our diverse community and uniting to condemn this awful act.”