Olivia Uffindell died from injuries when a gust of wind blew her buggy in front of a delivery van, her family said.
This map shows the location of the incident - Woburn Court in Croydon, south London.
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A cloudy and damp start for many southeastern areas, but turning brighter through the afternoon.
Countries have been switching off their lights for Earth Hour, a global call for international unity on the importance of climate change.
Captain Steve Smith admitted Australia deliberately tampered with the ball during the third Test against South Africa.