The Indian journalist was killed while covering fighting between Afghan troops and Taliban in Spin Buldak, Kandahar on Friday.
Siddiqui started his career as a television news correspondent. He switched to photojournalism and joined the international news agency Reuters as an intern in 2010.
Siddiqui has since covered the Battle of Mosul (2016–17), April 2015 Nepal earthquake, the refugee crisis arising from the Rohingya genocide, 2019–2020 Hong Kong protests, 2020 Delhi Riots and the COVID-19 pandemic among other stories in South Asia, Middle East and Europe.
In 2018, he became the first Indian alongside colleague Adnan Abidi to win the Pulitzer Prize for Feature Photography as part of the Photography staff of Reuters for documenting the Rohingya Refugee Crisis.
He used to head the Reuters Pictures team in India.