Update: Lloyd Center General Bob Dye said at 8:45 p.m. Friday that there were no issues. "Quiet night," he said.

Some stores at the Lloyd Center mall will be closing early Friday after a threat on social media of "an organized smash & grab/flash rob event," according to officials at the mall.

Lloyd Center General Bob Dye said his staff received a tip that people were planning a "flash rob" event at the mall at 8 p.m. Friday evening. He notified the merchants of the mall and some of them chose to close early, he said.

"Retail establishments are always vigilant about loss prevention," he said.

It was unclear whether the threats were a hoax or not. Dye said police had looked into them and found few signs of a large crowd gathering. Still, he said extra security measures were being put in place, just in case.

"We have no concerns about public safety," he said. "We'll be open and it will be business as usual."

-- Kale Williams

kwilliams@oregonian.com

503-294-4048

Molly Harbarger contributed to this report.