The U2 frontman was at a restaurant nearby on 14 July (16), when a terrorist drove a truck filled with weapons and explosives into a crowd watching a fireworks display on Promenade des Anglais, leaving 84 people dead.

Bono and his fellow diners at La Petite Maison reportedly had to be rescued by armed police after the attack, which prompted staff at the eatery to pull down the venue's shutters and lock themselves inside for safety.

On Saturday (23Jul16), the 56-year-old singer, who owns a home in the nearby town of Eze, headed back to Promenade des Anglais to join mourners as they marked the tragedy with a minute of silence.

Bono, who was dressed in all-black, was photographed laying flowers at the crash site, and in the accompanying message, he wrote, "There is no end to grief, that's how I know there is no end to love" - words are borrowed from the lyrics to U2's song California (There Is No End To Love).

He concluded the poignant note by adding, "With respect for lives lost here on 14/7/16."

Following the attack, the group posted on the U2 Twitter page, "Love is bigger than anything in its way - Bono, Edge, Adam, Larry."

Bono and his bandmates were also close to the atrocities in Paris, France in November (15), when 89 people were killed in a series of co-ordinated bomb and gun attacks, one of which took place at the Bataclan concert hall. The stars were in the city rehearsing for their concert the following day, but they cancelled their shows due to safety fears and rescheduled them for December (15).

The rockers also offered their private jet to the Eagles of Death Metal, who had been playing at the Bataclan at the time of the attack.