TULSA - On Friday morning hundreds gathered to remember the lives lost during the Oklahoma City bombing 18 years ago.
Gov. Mary Fallin attended a ceremony marking the anniversary of the April 19, 1995 attack that killed 168 people during the bombing of the Alfred P. Murrah Federal Building.
VIEW PHOTOS OF THE MEMORIAL (http://bit.ly/XLap2q)
Fallin says the anniversary is a day to remember those killed and injured and also to honor the emergency responders, firefighters and police who worked at the scene. She says the state's response to the tragedy would later become known as the "Oklahoma standard."
The governor also honored the victims of Monday's bombing at the Boston Marathon. She says Oklahomans understand the pain that those are feeling in Boston, and that residents continue to offer their prayers.
In Oklahoma City 18 years ago, anti-militant Timothy McVeigh and his co-conspirator Terry Nichols set off the blast.
The memorial service at the First United Methodist Church began at 8:55 a.m. Similar to previous years, 168 seconds of silence was observed at 9:02 a.m. -- the exact moment the bomb went off.
The day also marks the 20th anniversary of the Waco, Texas raid. On this day in 1993 more than 75 people including children were killed in an explosion at a religious camp.
A 50-day standoff between federal agents and members of Branch Davidians ended in gunfire. McVeigh timed the OKC explosion with the second anniversary of the Waco siege. He said federal agents mishandled the situation there.