Eleven cows were killed. Sandy Springs police originally said they captured the final loose cow just after 4:15 p.m. on I-285, but police were still searching for it at 6:30 p.m. It reportedly jumped over the side of the road and into the woods.

Around 8 p.m., Sandy Springs police spokesman Sgt. Sam Worsham told AJC.com that authorities had captured the elusive last calf in a creek bed near Ray’s on the River, which is on Powers Ferry Road.

#UPDATE the cow JUMPED over the side of the road after police had it blocked in--and screamed "you'll never take me alive, coppers!!" But really, they are now looking for him in the woods between 285 and Interstate North Pkwy near Northside Dr #ATLtraffic — AJC WSB Traffic (@ajcwsbtraffic) October 1, 2018

The driver of the tractor-trailer was taken to an area hospital with injuries. The condition of the driver was not known Monday afternoon.

At one point, all lanes of the I-285 Inner Loop were shut down, the WSB 24-hour Traffic Center reported. Lanes started reopening about 5:50 a.m. By 6:20 a.m., all lanes were cleared, but the ramp was not reopened until 1:30 p.m.

TRAFFIC UPDATE: Cobb Co.: Tractor Trailer/Cow Crash Clean Up is Finished: I-285/eb (inner loop) ramp to I-75/nb; ramp is now back open; delays remain; https://t.co/RuPa64SzPC: #ATLtraffic pic.twitter.com/BdSlfZFPkq — Triple Team Traffic (@WSBTraffic) October 1, 2018

The cattle will be transported to a facility in Calhoun, Cobb police Sgt. Wayne Delk said.

During the height of the hoopla, Sandy Springs police told Channel 2 Action News as many as 70 cows could be roaming the area of the Chattahoochee River. Drivers on their way to work were reporting cow sightings along I-285 and I-75 in Cobb and Fulton counties.

Some proved difficult to contain. One of the cows made it to I-75 North at Cumberland Boulevard, where it charged at teams trying to corral it in a construction zone, the news station reported. One man was trampled when the cow bolted. It is not clear if he sustained injuries.

Another two cows were spotted by officers at a SunTrust bank branch on I-285 and New Northside Drive, according to Channel 2.

Local ranchers on horseback volunteered to help with the roundup.

On horseback near Akers Mill and I-75 looking for cows Credit: JOHN SPINK / JSPINK@AJC.COM Credit: JOHN SPINK / JSPINK@AJC.COM

“We are trying to corral them as best we can,” Delk told AJC.com during the effort. “If we can’t corral them, at least keep an eye on them and keep them in sights until they can be picked up.”

The Georgia Department of Transportation was handling bovine transport. Crews with Cobb County fire and GDOT used a saw to cut through the wreckage and free the cows still trapped on the truck.

More are still being removed from the overturned TT. pic.twitter.com/eJfAsM8AYa — Georgia DOT (@GADeptofTrans) October 1, 2018

Crews with the Georgia Department of Transportation and volunteers help to remove cows trapped in an overturned tractor-trailer on the I-285 ramp to I-75 in Cobb County on Monday morning. JOHN SPINK / JSPINK@AJC.COM

The cows were then herded onto vehicles to be removed from the crash site. It was not known if any of the trapped cows were injured.

The 10-hour cleanup turned the Westside Perimeter into a parking lot during the Monday morning commute and caused major delays through the lunchtime drive.

All lanes of I-285 East were held before New Northside Drive after a tractor-trailer carrying 89 cows overturned on the ramp to I-75. JOHN SPINK / JSPINK@AJC.COM

Authorities are still looking into the cause of the crash. After a preliminary investigation, it does not appear speed was a factor, Delk said.

This is not the first time a truck spilled its bovine cargo on Atlanta interstates. In May, a tractor-trailer hit a sound barrier on I-75 North near Kennesaw, shutting down the interstate for hours and killing 10 cows.

RELATED: 10 cows killed in crash that closed I-75 for hours

One month later, three cows were killed and dozens others were trapped in a crash on the ramp from I-285 South to I-20 East in DeKalb County.

MORE: Tractor-trailer crash kills 3 cows, blocks I-285 ramp for hours

All lanes of I-285 East were shut down at the ramp to I-75 North after a tractor-trailer hauling cattle overturned. JOHN SPINK / JSPINK@AJC.COM

» For updated traffic information, listen to News 95.5 and AM 750 WSB and follow @ajcwsbtraffic on Twitter.