Today's best photos: From a heatwave in Vietnam to a fire festival in Edinburgh

The National picks the most striking images from around the world

Boatmen collect dead fish from a reservoir in Dong Nai province, Vietnam, with a brutal heatwave and the lake's management being blamed for the death toll. AFP

Tourists observe hundreds of sea lions gathered at a pier in San Francisco. AP

People in character take part in the media call for Furiosa: A Mad Max Saga at Circular Quay in Sydney. Getty Images

Police block protesters from marching towards the American embassy during a rally in Manila against joint exercises by the Philippines and the US in the South China Sea. EPA

A pro-Palestinian protester hurls a tear-gas canister towards police after it landed among his group at the University of South Florida, in Tampa. AP

Dancers perform the traditional Indonesian Reog dance, commemorating International Labour Day in Jakarta. AFP

A child looks at a barbed-wire fence in Rafah in the southern Gaza Strip, where the war between Israel and Hamas is now focused. AFP

Performers take part in the traditional Beltane Fire Festival on Calton Hill, Edinburgh. AFP

More from The National:

Tuesday's best photos: From protests in Texas to a volcano in Indonesia

Monday's best photos: From a makeshift cinema in Rafah to horse riding in Versailles

Sunday's best photos: From ritual festival in Pakistan to schoolchildren in Gaza

Saturday's best photos: From migrants in English Channel to biking during sunset

Friday's best photos: From elections in India to the Moulin Rouge in Paris