Three persons were arrested on Friday (April 3) for voluntarily causing hurt and committing robbery following a 1 1/2-hour stand-off with the police at a Jurong HDB flat.The incident, involving two men, aged 21, and a 24-year-old woman, happened at about 10.10pm at a residential unit at Block 262 Jurong East Street 24.Responding to media queries, the police said they were conducting follow-up investigations into a case of voluntarily causing hurt in committing robbery at the said location.The trio refused to open the door and instead locked themselves inside the flat.Residents told Shin Min Daily News that they saw significant police presence from various units. The Singapore Civil Defence Force (SCDF) was also present.AsiaOne understands that the officers deployed were from the police's Crisis Negotiations Unit, Special Operations Command.SCDF said it deployed a safety life pack and rescuers from the Disaster Assistance and Rescue Team on standby as a precautionary measure. Read more