Photo highlights of the day: A hummingbird flies in a garden in Pereira, Colombia. (Luis Acosta/AFP/Getty Images)

More of today’s best photos

John Severson founded the world’s first surf culture magazine in 1959, becoming the hero of wave-riders the world over. See more of his work

Fan Ho is one of Asia’s most beloved street photographers, capturing the spirit of Hong Kong in the 1950s and 60s. His work shows a love of people combined with unexpected, geometric constructions and a sense of drama heightened by use of smoke and light. More

Approaching Shadow, 1954. Photo: Fan Ho/AO Vertical Art Space

From the picture desk: A man is doused with milk after being hit with gas by security forces trying to disperse demonstrators protesting against the shooting of unarmed black teen Michael Brown in Ferguson, Missouri ( Adrees Latif/Reuters). 

• US attorney general Eric Holder is due in Ferguson today to check on a federal investigation into the shooting. Get the latest from Ferguson

The 72nd World Science Fiction Convention is being held in London at the ExCel centre from 14-18 August – photographer Christian Sinibaldi visited.

Students of the Shaolin Tagou martial arts school create mesmerising patterns as they practice for the opening ceremony of the 2014 Youth Olympic Games.

Heavily armed police fired teargas and rubber bullets to force hundreds of protesters out of the centre of Ferguson, Missouri, on the fourth night of protests over the shooting of unarmed black teenager Michael Brown. 

Demonstrators, who for hours had sniper rifles trained on them while they protested with their hands up as an emblem of peaceful protest, complained that they were subjected to military-style tactics as they fled through gas-filled residential side-streets. 

Read the latest report from Ferguson