![People walk over a bridge crossing the dried river bed of the Toess river near the village of Wila, Switzerland, August 9, 2018. (Photo/Agencies)](http://www.ecns.cn/hd/2018/08/10/f82e2666f99b48a1800ff6f7216ccf28.jpg)
People walk over a bridge crossing the dried river bed of the Toess river near the village of Wila, Switzerland, August 9, 2018. (Photo/Agencies)
![A man cycles during hot summer weather on a bridge crossing over the dried river bed of the Toess river near the village of Wila, Switzerland, August 9, 2018. (Photo/Agencies)](http://www.ecns.cn/hd/2018/08/10/21fa028ee5a5499caa2cb102d4f3325a.jpg)
A man cycles during hot summer weather on a bridge crossing over the dried river bed of the Toess river near the village of Wila, Switzerland, August 9, 2018. (Photo/Agencies)
![People cycle during hot summer weather along the dried river bed of the Toess river near the village of Wila, Switzerland, August 9, 2018. (Photo/Agencies)](http://www.ecns.cn/hd/2018/08/10/0b2cd164c9e9444b98ba4cf69c270179.jpg)
People cycle during hot summer weather along the dried river bed of the Toess river near the village of Wila, Switzerland, August 9, 2018. (Photo/Agencies)