CHARLESTON, S.C. (WCIV) -- As the first beams of sunlight kissed the banks of the Ashley River, search crews were on the scene.
Major James Brady with the Charleston County Sheriff's Office said a caller reported buzzards circling the area of a marsh that separates the river from a row of homes on Furman Drive -- near the home of a woman reported missing earlier this week.
Marjorie Gayle McCaffrey was reported missing by her husband, Robert McCaffrey, through a 911 call on Sunday.
A look from Furman Drive out over the marsh as the sun rose Wednesday showed an air boat in use. Investigators also used a helicopter in the search.
Major Brady said it was too dark to actively search Tuesday when the call came in, and the plan was to search the marsh during the daylight hours.
As of 9 a.m. Wednesday, officials with the Charleston County Sheriff's Office, Charleston Police Department and Charleston County Rescue Squad were on the scene.
As the search seemed to wrap up, Major Brady said the search via the helicopter revealed nothing of note. He said the plan was to canvas the entire marsh area between the row of homes on Furman Drive and the bank of the Ashley River. He said an air boat would circle one more time for clues but more than likely the buzzards were circling due to a dead dog found in the area.
As a matter of following up, crews also searched ponds in the neighborhood.
A Charleston County Sheriff's Office report states Robert McCaffrey told investigators he and his wife had gotten into an argument and he later left to a home he frequents in Easley. At some point during the nearly 4-hour trip, he was issued a speeding ticket.
When he returned to his home the next morning on Limestone Boulevard, McCaffrey told investigators his wife, Marjorie Gayle McCaffrey, was gone.
A prayer service has been planned for tonight for Marjorie Gayle McCaffrey at First Baptist Church.
Anyone knowing the whereabouts of Marjorie Gayle McCaffrey is asked to contact the Charleston County Sheriff's Office at 843-202-1700.
Check back with ABC News 4 as we continue to develop this story.
* ABC News 4's Tessa Spencer, Brian Troutman, Natalie Caula and Jon Bruce contributed to this report.