Serhat TUNAR -TDO- Four people were stabbed on Saturday and Sunday in the Edmonton area in North London, police said.
“The four victims are all from different backgrounds and appear to have been selected at random due to them being alone and vulnerable, said Detective Chief Inspector Stuart Smillie from the Met Police.
“There is nothing to suggest this incident is terror-related," he added.
A suspect was arrested on Sunday morning but "enquiries continue to establish if he is the individual behind these incidents," police said.
Two of the four victims are in critical conditions, police said. The other victims sustain injuries that are not life-threatening.