At least 10 people were killed and 18 injured after an oil tanker caught fire early on Wednesday as it was being repaired in Indonesia's Riau Islands province, according to local police.Fire broke out on the vessel, the MT Federal II, at around 4 a.m. on Wednesday (2100 GMT Tuesday) at a shipyard in the city of Batam, local police chief Zaenal Arifin said. Batam is around 20 kilometres (12.