Churches around France held Sunday services honoring three people killed in an Islamic extremist attack at Notre Dame Basilica in the city of Nice that pushed the country into high security alert, while police questioned six suspects in the case. Nice Archbishop Andre Marceau was preparing for a special nighttime service in the basilica to purify it following Thursday's fatal knife attack, and then to pay homage to the victims and to mark All Saints’ Day, when many Christians around the world honor the dead. Priests in the Saint-Sulpice Church in Paris and elsewhere in France mentioned the attack during their All Saints’ services, which were exceptionally allowed to go ahead despite a new monthlong virus lockdown that started Friday in France.