A sea of people thronging the beach promenade in the French Riviera city of Nice for an emotional minute's silence yesterday, four days after a Tunisian attacker drove a truck into a crowd at the same place on France's national day, killing 84 people and injuring around 300. Similar gatherings were held across the country yesterday, with the minute's silence accompanied by the ringing of church bells. The event marked the end of a three-day period of national mourning, but prosecutors said just 52 victims had been officially identified so far.