Meghan Markle mocked for attracting a small crowd at an event

The installation, unveiled during World Health Assembly week, consists of 50 illuminated lightboxes with lock screen photos of children who lost their lives as a result of online violence or digital harm.

Markle appeared without her husband, Prince Harry, 41, who has also publicly campaigned against the dangers social media poses to young people.

The event included WHO Director-General Tedros Adhanom Ghebreyesus, ministers, health officials and families personally affected by online abuse.

A source familiar with the reaction to the event said the sparse attendance quickly became a talking point.

The insider added: “There was surprise among some observers because Meghan is still one of the most internationally recognized women in the world, yet the atmosphere around the event felt surprisingly subdued. Many people expected a much larger public response given the amount of media attention that usually follows her.”