Human Rights Watch official, Tanya Lokshina, received a letter purportedly from US intelligence leaker Edward Snowden on Thursday.
The letter, posted it to her Facebook page, invites human rights group and other "respected individuals" to meet him at Terminal F of Moscow's Sheremetyevo Airport.
Snowden says he would like to make a statement and discuss the "next steps forward" in his situation.
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Seasonal rains have battered the country since late June with more than 150,000 people affected by floods and landslides.
The bus reportedly hit a tree near Russell Square.
Low pressure will throw cloud and few showers across the UK today, but it will also draw in very warm air from Europe again.