FOUR students have been “sprayed with an unknown substance” at a university – sparking a campus lockdown.
Police rushed to the University of Greenwich shortly after midnight after reports a man had been “attacked”.
The victim was treated for head injuries before being rushed to hospital.
Three other people were also sprayed with the substance, police have said.
Their injuries are understood to not be life-changing or life-threatening.
A manhunt is also underway, with cops confirming no arrests have yet been made in connection with the incident.
A Metropolitan Police spokesman said: “On Tuesday, police were called to Avery Hill Road, SE9, at 12.13am following reports that a man had been attacked and sprayed with an unknown substance.
“Officers attended the scene alongside the London Ambulance Service who treated a man for head injuries on scene before taking him to hospital.
“Whilst conducting enquiries on scene, officers found that three other people were sprayed with the substance.
“Tests were carried out and it was found that the substance was non-toxic. None of the victims suffered any life-changing/threatening injuries.
“At this early stage, there have been no arrests and urgent enquiries are on-going. A crime scene remains in place.”
A spokesman for the university added: “Following a Police incident in front of our Avery Hill campus overnight, the main entrance is currently closed, although the rest of the campus is open as usual.
“Staff, students and visitors will be directed to an alternative entrance by stewards on arriving at the campus.
“There may be some delays to the campus bus service as a result.
“We will keep you updated this morning to advise when the main entrance is reopened.”