The incidents unfolded between last Sunday (January 11) and Monday (January 12) in Feltham and Croydon.
This only includes incidents that London Now is aware of and has reported on.
Information about each incident is from the Metropolitan Police.
Woman rushed to hospital after a stabbing in Croydon
Emergency services were called to Brighton Road, near Old Lodge Lane in Croydon, just before 8.40am on Sunday (January 11).
The woman was found with multiple stab wounds, the Metropolitan Police said.
She is in a stable condition following the incident.
Boy, 18, stabbed to death
An 18-year-old boy was pronounced dead in hospital after being the stabbing on Victoria Road at 5pm Monday (January 12).
It is understood that the boy went by the name Malikhai, however it should be noted that the Metropolitan Police has not confirmed this at the time of publication.
A 16-year-old boy was arrested on suspicion of murder and possession of an offensive weapon on January 12.
Another 16-year-old boy was arrested on suspicion of the same offences today (January 13).
A 19-year-old man was also arrested on suspicion of grievous bodily harm and possession of an offensive weapon.
The GBH arrest relates to an allegation of assault on one of the 16-year-old boys arrested.
