All 2,749 victims' names will be recited by siblings of those who lost their lives on 9/11

The siblings of those who lost their lives on September 11, 2001, will lead this year's solemn fourth anniversary ceremony at Ground Zero, Mayor Michael Bloomberg and Gov. George Pataki announced late last week. As music plays in the background, siblings -- reading in pairs -- will recite the names of the 2,749 victims.

"In this small way, we acknowledge the special bonds they shared with their beloved brothers and sisters who died that day," Mayor Bloomberg said in a statement.

As in previous years, the ceremony will take place at the World Trade Center site on the morning of Sunday, September 11. Also in keeping with traditions established by earlier ceremonies, four moments of silence will punctuate the day's program. During the first moment of silence -- at 8:46 a.m., to mark the time the first plane struck the North Tower -- houses of worship statewide will be asked to toll their bells "so that people from all over New York State, indeed across America and the world, can take a moment to remember the heroes we lost and the spirit of freedom that prevailed that day," said Gov. Pataki in a statement. Three other moments of silence will be observed at 9:03 a.m., 9:59 a.m., and 10:29 a.m., marking the times of the second plane strike and the collapse of South and North Towers respectively.

While the names are read, family members will be invited to descend the ramp to the lowest level of the site to lay flowers. The ceremony will conclude at approximately noon, but the site will remain open to families until 4 p.m.

Family members are invited to lay flowers at Ground Zero