A masked hooded thug smashed a window and stabbed a teenager as he sat in a car on a quiet road in south east London.
Police and paramedics rushed to reports of an assault in Nelson Mandela Road, Kidbrooke, and found a 19-year-old man with stab wounds.
He was in the driver seat of a car parked on the A2 slip-road when a masked hooded man is reported to have attacked him, police said.
The victim ran towards Kidbrooke Green Park and was found by a witness who called the police.
A Met Police spokesman said: “He was taken to a south London hospital.
“His injuries are not life-changing or life-threatening.
“No arrests have been made. Enquiries continue.”
The road was cordoned off by police while an investigation was carried out.
Anyone with information can contact police via 101 or @MetCC.
Information can also be reported anonymously to Crimestoppers on 0800 555 111 or online at www.crimestoppers-uk.org.