On the second anniversary of the Boston Marathon bombings, public officials will memorialize the victims of that tragedy with a moment of silence this afternoon.

Gov. Charlie Baker, Lt. Gov. Karen Polito and Boston Mayor Marty Walsh will hold a moment of silence at 2:49 p.m. this afternoon. Baker and Walsh attended memorial ceremonies this morning. Walsh unveiled an honorary banner to honor the victims and survivors of April 15, 2013 on Boylston Street this morning. Today marks the first annual One Boston Day, which is intended to be a "celebration of resilency, generosity and strength of the people that make Boston the great city it is," according to Walsh's office.

The bombs that went off near the marathon finish line on Boylston Street killed three and injured at least 260 on April 15, 2013. Dzhokhar Tsarnaev was found guilty of orchestrating the blasts in federal court earlier this month. His brother, Tamerlan, is also suspected to be an architect of the attacks but was killed in a police shootout four days after the bombs went off.

In a statement, Baker said, "Our thoughts and prayers are with the victims and their families, who seek to make sense of that awful day two years ago. In many respects, those most affected by the events of two years ago have shown us all the way back – with their courage, grace and determination. They honor the past, remember and treasure loved ones lost and injured, and look forward to a better future. We should strive to do the same."

Other pols tweeted their thoughts: