Police are investigating a complaint of theft in connection with Michael Hotung's ex-wife, former TVB actress Katie Chan Fok-sang. A police source said Hotung, 53, made a report on June 26, alleging that Chan had stolen letters from a Mong Kok building owned by Hotung Estates. The complaint, which came three years after the couple's 2009 divorce, was made public after it was reported in a local newspaper earlier this week. The source said Chan, 52, was accused of using chopsticks to take letters out of the mailbox in the Tung Choi Street building. It was not known how many letters were allegedly taken. The source said Chan has denied the allegations and has not been arrested. Chan announced her divorce from Hotung in late 2009, after 20 years of marriage. They have a son and a daughter. Their marriage ended in a public stand-off after the divorce, with Hotung filing lawsuits against Chan for allegedly defamatory comments made in media interviews and demanding she return three diamond rings. Hotung's mother, Winnie Ho Yuen-ki, is the estranged sister of Macau gambling mogul Stanley Ho Hung-sun. His father is tycoon Eric Hotung, grandson of influential Eurasian businessman Robert Hotung, who owned Hotung Estates. A police spokesman said the case was still under investigation and no one had been arrested.