In this Monday April 15, 2013, file photograph, emergency workers aid injured people at the finish line of the 2013 Boston Marathon following two explosions in Boston, Mass. Credit: Charles Krupa / AP

BOSTON — Boston is marking eight years since the bombing at the 2013 Boston Marathon killed three people and injured scores of others.

Acting Mayor Kim Janey on Thursday visited fire stations that had been critical in the response to the attack, as well as the memorials marking the spots where the two pressure cooker bombs detonated near the downtown finish line of the storied race.

Janey’s office said there will also be a citywide moment of silence at 2:49 p.m., marking the time when the first bomb detonated, followed seconds later by the second explosion a few hundred yards away.

Janey will then join Gov. Charlie Baker later Thursday to lay wreaths at the bombing sites where 29-year-old Krystle Campbell, 23-year-old Lingzi Lu and 8-year-old Martin Richard died,

The city also marks each April 15 with “One Boston Day,” a day where acts of kindness and service are encouraged.

The U.S. Supreme Court last month said it’ll consider reinstating the death sentence against marathon bomber Dzhokhar Tsarnaev after a federal appeals court tossed out the penalty last summer.

Tsarnaev and his older brother, Tamerlan, also fatally shot MIT Police Officer Sean Collier in Cambridge in the ensuing manhunt.

The Boston Marathon is traditionally held on the third Monday of April, a holiday known as Patriots Day in Massachusetts. It was held virtually last year and has been moved to October this year because of the ongoing pandemic.