Not entirely the same thing, but recently there was outrage in Auckland when the Indian community there felt there was racism directed at Indians.
A young girl (aged 2) had gone missing from a backyard while playing with her sister. Eyewitnesses came forward and said they saw the little girl talking to a woman in the street. The media went into hyperdrive, and there was huge coverage of the case with the police as there was the child had been abducted.
Two weeks prior, a young Indian man in his 20's had gone missing after a night on the turps. His family were worried that something bad had happened to him. Some of his belongings were found on K-Road (a notorious night spot), and he had not been at the school he was enrolled in for weeks etc.
The Indian community felt it was racist that the coverage to the little, white girl was far greater than that of the young Indian man.
Still nothing has come of the search (despite coast searches etc) for the missing man, but the young girl was found in a stormwater drain a few days later. She had fallen in.
There are recent articles of the Indian family saying the police had not had the resources to find the young man because they were all looking for the young girl - not because she was a more pressing issue, they felt, but because he was Indian.
As for missing people in Singapore, check out the Police website. There are heaps - and we rarely hear about any of them.