A briefcase found in a Southlake park with an envelope in it that had "C-4" written on it was a hoax, Southlake police said Sunday. C-4, or composition 4, is a variety of plastic explosive, according to the Bureau of Alcohol, Tobacco, Firearms and Explosives.
The briefcase was disposed of after a robot deployed by members of the Northeast (Tarrant) Explosives Response Team rolled up to the case and inspected it, Southlake police said.A jogger found the silver briefcase shortly before 1:30 p.m. Sunday at a pavilion in Liberty Park at Sheltonwood just north of Dove Road in Southlake.The jogger saw the envelope with "C-4" written on it and immediately notified authorities, said Kim Leach, a Southlake police spokeswoman on Sunday."Even without that envelope being in there, we would have still considered it suspicious," Leach said Sunday. "You just don't see a briefcase left in a park."Authorities cordoned off part of the park and summoned the bomb squad.Police continued to investigate the case Sunday.Domingo Ramirez Jr., 817-390-7763Twitter: @mingoramirezjrHave more to add? News tip? Tell us

