Neighbours living near the scene of a fatal shooting, in Uxbridge, have described hearing loud bangs that sounded "like fireworks".
A 38-year-old man was shot dead in Vine Lane on Tuesday evening (February 3).
Police were called to the road, at its junction with St Andrews Lane, shortly before 7pm.
Paramedics battled to save the victim but he was pronounced dead at the scene less than an hour later.
A murder investigation has been launched but no arrests have yet been made.
Forensic officers and sniffer dogs were seen searching the road, which backs onto woodland. Nearby ACS Hillingdon International School was closed on Wednesday.
A police cordon remained in place on Wednesday and officers manned the road, which has been cordoned off from its junction with Sylvana Close. Traffic was being diverted along Court Drive.
One neighbour, who did not want to be named, said: “I heard the shots last night, several.
"I thought it wouldn't be gunshots. I then thought it was fireworks, because we haven't got guns in England.”
The 46-year-old said he went outside, leaving his son indoors, in case the sound had come from a car crash, but could not see anything so returned to his home.
He added: “Half an hour later flashing blue lights arrived and police cordoned off the road. Last night, someone said there had been a shooting.
"I was surprised that it's happened here but [I'm] not affected, so I still feel safe.
"It's a very quiet area normally. Nothing like this has ever happened before.”
Mother-of-one Semra Sagik, 41, who also lives in the road, told getwestlondon: “I was shocked when I heard in the morning.
“Police came [last night] and asked if we knew anything. I'm scared.
“We came here two months ago. I know around here it's a secure place, as far as I know."
She added: “I hope they can find who did it, I hope as soon as possible, because we need to feel secure.”
Police are in the process of informing the victim's next of kin. A post-mortem examination will be held in due course.
The Metropolitan Police Service's Homicide and Major Crime Command is investigating.
Anyone with information should call 0208-358-0300, or call Crimestoppers anonymously on 0800 555 111.