A 32-year-old man has been killed in a shooting and a woman in her late 20s was taken to hospital, police have said.
The incident happened in Ealing, west London.
A Metropolitan Police spokesman said: "We were called at about 2.50pm (on Wednesday) afternoon to reports of shots fired in Felix Road, W13. Ourselves and the ambulance service attended.
"A 32-year-old man was pronounced dead at the scene. A woman in her late 20s has gone to a west London hospital where she remains in a critical condition."
The woman was thought to be suffering gunshot wounds.
No arrests have been made in connection with the incident and inquiries are ongoing, said the Met spokesman.
The injured woman, aged 28, was later said to be stable.
The shooting, which took place at a residential address on the street, was being investigated by the Met's Trident Gang Crime Command.