At least 15 people were killed in the early hours of New Year’s Day when a man drove a pickup truck through a crowd of revelers on New Orleans’s Bourbon Street. The attack, which authorities said injured dozens of others and is being investigated as an act of terrorism,

No arrests had been made in the Houston-area in connection with the New Orleans attack that killed 15 and injured dozens more as of Thursday morning, officials said. The announcement that no one had been arrested came after officials with the FBI Houston office said investigators had concluded a search of a property in north Harris County around 7:50 a.