California ? A major general and two senior officers have been disciplined for their roles in investigating the deaths of 24 Iraqi civilians in the town of Haditha in 2005, the Marine Corps said Wednesday.

Maj. Gen. Richard A. Huck, former commanding general of the 2nd Marine Division, has received a letter of censure from the secretary of the Navy for the “actions he took and failed to take” in response to the killings.

The statement from the Marine Corps does not elaborate.

Col. Stephen W. Davis and Col. Robert G. Sokoloski also received letters of censure. Davis was cited for failure to take action when informed of the slayings. Sokoloski was cited for unsatisfactory performance of his duties.

In all, 24 civilians were killed by a Marine squad in the aftermath of a bomb blast that killed one Marine on Nov. 19, 2005. Among the dead were women and children who were killed in their homes as Marines went on a house-to-house sweep.