Three boys from south west London have been hospitalised, two with serious injuries, after a tree fell on them on Saturday evening.
The nine-year-olds were waiting to use the practice nets at Spencer Cricket Club in Earlsfield when the tree fell down.
Two of the boys suffered serious head injuries, and one suffered leg injuries. They were rushed to hospital and the club suspended play for the rest of the day.
Monique Wilkinson, 33, was staging a birthday party for her three-year-old daughter at her home when she heard the tree fall.
She said: "We could see the kids stuck under the tree and there were a lot of people around.
"It's terrible. These kids play on the field every weekend."
She added: "The air ambulance landed in the field across the road from us and there were four or five ambulances in total. The emergency services seemed to have everything under control.
"Another tree came down on this road earlier in the day which shows how bad the winds were."
The incident happened as strong winds buffeted the capital. A statement from the club said the boys' conditions were being assessed.
The uprooted tree was still lying across the cricket pitch on Saturday night.