If a Facebook deal sounds too good to be true, it probably isn't worth the risk, say Christchurch police.
Police are investigating a case involving a man who has potentially scammed at least 11 people by selling goods on social media pages.
Area Prevention Manager Senior Sergeant Paul Reeves said the man has allegedly been offering items, such as bikes, for sale throughout Canterbury.
"He is accepting payment and then not delivering the goods," he said.
"Too many people have lost hundreds of dollars by handing over money to individuals behaving in this way."