Libya's move came after Switzerland allegedly blacklisted 188 high-ranking Libyans, denying them entry permits. The Swiss ban is said to include Mr Gaddafi and his family. The row began after the arrest of Mr Gaddafi's son Hannibal and his wife, Aline Skaf, in Geneva in July 2008. They were accused of assaulting two servants while staying at a luxury hotel in the Swiss city, though the charges were later dropped. Libya retaliated by cancelling oil supplies, withdrawing billions of dollars from Swiss banks, refusing visas to Swiss citizens and recalling some of its diplomats. In the same month that the Gaddafis were arrested, Libyan authorities detained two Swiss businessmen, in what analysts believe was a retaliatory move.