A masked knife man attacked a “rival” outside a school, a court has heard.

Rasak Osomo, 23, denied attempted murder but admitted an alternative charge of wounding Josh Olbrechts with intent in Heath Lane, Dartford, in September.

Osomo, who was wearing a balaclava and wielding a knife, came to blows with the victim outside Dartford Science and Technology College at 3pm. The site and nearby Wilmington Academy and Westgate Primary School were put on lock-down.

At the brief hearing at Woolwich Crown Court Judge Christopher Kinch QC was told the victim had to be treated in hospital and the prosecution would not be accepting Osomo’s plea to the lesser offence.

Osomo also admitted possession of a bladed article in public but denied attempting to inflict grievous bodily harm on Lewis Back during the same incident.

Osomo, who lives in Deptford, south-east London, was visiting his parents in Willow Road, Dartford.

Charles Langley, defending, said: “This is a man of previous good character who is facing extremely serious charges.”

He added that Osomo did accept that he attacked Mr Olbrechts. Osomo, who appeared via video link, will stand trial on March 19.