G20 in Hangzhou: Tight security in an empty city
2 September 2016 Last updated at 13:40 BST
This weekend, the Chinese city of Hangzhou will host the G20 summit.
Hangzhou itself has been emptied out - in the name of security - with many residents taking advantage of the generous travel vouchers on offer from the authorities.
But as John Sudworth discovers, speaking to those who have remained is proving challenging.