NEW YORK (AP) — Officials at the Sept. 11 museum will mark the 22nd anniversary Thursday of the 1993 World Trade Center bombing that killed six people and injured more than 1,000.

Some victims' family members will take part in the ceremony near the north pool of the Sept. 11 memorial, the spot where a truck bomb exploded below the trade center's north tower on Feb. 26, 1993.

Executive Director Pat Foye of the Port Authority of New York and New Jersey and Joe Daniels, president of the National September 11 Memorial & Museum, also will participate.

"The importance of marking the '93 anniversary is to help the public understand that the events that we saw surface on 9/11 are part of a much larger picture that started before 9/11 and certainly continues to this day," Daniels said.

The 1993 bombing left a giant crater in the basement of the 110-story twin towers.

It was one of the worst terrorist attacks in U.S. history at the time it occurred but was overshadowed by the events of Sept. 11, 2001 when terrorists used hijacked airplanes to destroy the towers and kill nearly 3,000 people.