About 30 minutes earlier, police reported that there was a "suspicious package" at the same subway stop.
#Enfield— London 999 Feed (@999London) June 19, 2018
BREAKING: Southgate Underground Station has been evacuated by the @BTP and @metpoliceuk due to a suspicious package. The whole of Southgate High Street #N14 has been closed to the public. BTP explosive/bomb detector sniffer dogs are also on scene. pic.twitter.com/VHG6azvv71
London police said "we are not aware of any serious injury" in a tweet, however British Transport Police report that "a small number of people have been treated at the scene" for injuries. Specifically, three people were treated on the scene while two more have been taken to the hospital, a London Ambulance spokesperson said.
"No serious injuries," the transportation police noted. "Enquiries continue but we do not believe this to be terror-related" at this time, the police added.