Image caption The pleasure boat Lamma IV collided with a ferry and then began to sink, throwing many of those on board into the water 
 
 Seven crew members have now been arrested from the two boats that collided in the waters off Hong Kong, leaving 38 people dead. Leung Chun-ying, Hong Kong's chief executive, confirmed that 38 people had died and more than 100 had been injured in the disaster, the worst-ever such incident in the territory. At an earlier briefing the head of police, Tsang Wai-hung, said the arrested suspects "responsible for manning the two vessels had not exercised the care required of them by law to ensure the safety of the vessels as well as the people on board". The accident occurred in the waters off Lamma, an island south of Hong Kong popular with tourists and expatriates. Busy waters 
 
 Dozens of people were thrown into the waters after the pleasure boat Lamma IV, carrying employees of Hong Kong Electric and their family members to watch a firework display, was in collision with the ferry. It partially sank within minutes of impact, while the ferry - operated by the Hong Kong and Kowloon Ferry (HKKF) company - was able to reach Lamma and disembark its passengers although it was taking on water. Some relatives of those feared lost have gathered at mortuaries to seek news of their loved ones, reported Associated Press news agency. This city of more than seven million people prides itself on highly regulated, efficient forms of mass transport by road, underground and by sea. Cause unknown 
 
 "Rescue action will continue overnight as FSD cannot rule out that there are still people inside the vessel or missing," the statement said. 'Isolated' accident 
 
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 Hong Kong Electric is owned by Li Ka-shing, Asia's richest man. It occurred during a busy period for passenger travel, at the end of a long holiday weekend to mark the mid-autumn festival that this year coincided with China's National Day on 1 October. The accident - the worst maritime accident in Hong Kong for over 40 years - has caused shock in Hong Kong, where thousands of people travel by boat among the territory's islands every day, say correspondents. Analysis Unlike mainland China, transport accidents resulting in fatalities are extremely rare in Hong Kong.
– The death toll in yesterday's Hong Kong ferry collision is now at 37, including five children, and six crew members have been arrested in the tragedy—one of the worst maritime accidents in Hong Kong in decades. The crew members, three from each boat involved, "are being investigated for endangering people's lives at sea," says the Security Minister. The ferry that sank, a pleasure craft, was carrying more than 120 passengers to a fireworks display; it went down within minutes. The other boat, a regular ferry, was able to reach nearby Lamma Island as it was taking on water. None of the fatalities were from that boat, al-Jazeera reports. Rescue crews are still searching for survivors, and the number of missing is not known, the BBC reports. More than 100 were injured, including nine who remain in critical or serious condition. The suspects who were arrested were "responsible for manning the two vessels," says the head of police, and investigators suspect they "had not exercised the care required of them by law to ensure the safety of the vessels as well as the people on board." More people will likely be arrested, he adds. The scene on the sinking boat was described as "total chaos," with many passengers unable to swim or not wearing life jackets.