A tsunami triggered by a strong quake in the South Pacific has killed at least 65 people in Samoa and more than 20 in American Samoa, say reports. The Samoan authorities say at least another 145 people have been injured and whole villages destroyed. American Samoa's delegate to the US Congress said thousands of people had been left homeless in the territory. An 8.3-magnitude quake struck at 1748 GMT, generating 15ft-high (4.5m) waves in some areas of the islands. The Samoa islands comprise two separate entities - the nation of Samoa and American Samoa, a US territory - with a total population of about 250,000 people. A tsunami warning was initially issued for the wider region but cancelled a few hours later. The general manager of Samoa's National Health Service told the BBC that 65 people had died and 145 people were injured. US President Barack Obama has declared a major disaster in American Samoa, enabling federal funding to made available to help victims. Floating cars "Some of the areas there are only a few feet above sea level, so you can imagine the devastation," said Eni Faleomavaega, who represents American Samoa in the US. "It caused severe damage to property, there are cars floating everywhere." Mr Faleomavaega told the BBC the waves had "literally wiped out all the low-lying areas in the Samoan islands," causing deaths and injuring "several hundred". He said the tsunami had hit within minutes of the quake, leaving people with no time to escape. "There would have been no warning system capable of giving adequate warning to the people," he said. Dr Lemalu Fiu, at a hospital in the Samoan capital, Apia, said the number of casualties was expected to rise as people arrived from coastal areas. Talutala Mauala, Secretary General of the Red Cross in Samoa, said she was travelling to the country's south coast, where many injuries were reported. "We won't know the full extent of the damage until we get there and see for ourselves," she said. Ms Mauala said it could take many months for people to rebuild their homes. An Associated Press reporter said he had seen "bodies everywhere" in the main hospital in Lalomanu, on Samoa's main island of Upolu, including at least one child. Several foreign tourists are thought to be among the dead.