But US Defence Secretary Mark Esper said on Saturday that he would not label the incident "terrorism" at this point. Speaking at the Reagan National Defense Forum in California, he said investigators must be allowed to do their work. President Donald Trump later pledged to review foreign military training programmes in the US. More than 850 Saudi nationals are reported to currently to be in the country for such activities. The Florida attack was the second shooting to take place at a US military base last week. Two days earlier, a US sailor shot dead two workers at the Pearl Harbor military base in Hawaii.