Police were called on Sunday morning to the Eurotunnel terminal, where the person was declared dead.
The woman, in her 60s, was pronounced dead in hospital, while a child suffered a leg injury.
If 48 letters are submitted to the chair of the 1922 Committee, Theresa May will face a secret ballot. Kent MP Adam Holloway has publicly said the country needs leadership.
BBC correspondents explain the 585 pages
Charts show a big divide across the country
Oxford United stretch their unbeaten league run to seven games with victory over Gillingham at the Kassam Stadium.
New Ebbsfleet United boss Garry Hill sees his side claim a goalless draw from their trip to Boreham Wood.
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