BOSTON (CBS) – Boston Mayor Marty Walsh is opening the doors of City Hall for residents to come and show their support for those injured and killed Friday night by terrorists in Paris.

Related: Memorial Honoring French Victims Grows At Boston Consulate

READ MORE: Surveillance Video Shows Man Pointing Gun At Police In Springfield

A condolence book will be available inside City Hall. Visitors can sign the book Saturday and Sunday from 1-5 p.m.

Anyone interested in signing the condolence book can enter City Hall through the Congress Street side of the building.

READ MORE: Summer Officially Underway In Massachusetts: Kids, Adults Alike Looking To Have Fun

Read: Islamic Society Of Boston Calls Paris Attacks ‘Horrific And Heartbreaking’

The book is located on the third floor.

MORE NEWS: Fourth Stimulus Check: Is Another Relief Payment Coming?

“Our thoughts and prayers are with the people of Paris during this time of unspeakable tragedy,” Walsh tweeted Friday night.