Runshaw College: Video appears to show 'knife gang'
Videos posted on social media appear to show the moment a gang, allegedly armed with knives, entered a sixth form college and threatened students.
Six people were later arrested after a 17-year-old boy was "nicked on the arm" at Runshaw College in Leyland, Lancashire, at 16:00 GMT on Monday March 4.
Lancashire Police said the group of males, believed to be from Manchester, ran off when officers arrived.
The college confirmed in a tweet there had been an "incident" but said it would be open on Tuesday as normal.