Some customers were upset about the closure, but residents of the building where the restaurant was housed are happy as they will no longer be disturbed by the noise.

That came after seven men and one woman were arrested for conspiracy to commit murder last Monday, one of whom, Hui Kwong-yiu, 65, was the owner of a noodles shop on the ground floor of Lee King Building where the victim, Chan Kwong-kuen, lived.

Chan was killed on March 29, after being slashed multiple times on his way to work around 3.30 am.

As a member of the owners' corporation, he had been handling the noise complaints against the restaurant, as the owner was chopping meat to make mince in the early hours everyday.

The shop, Ka Lai Yuen Chiu Chow Restaurant, was founded in 1976, and is rumored to be closed at the end of April since Hui's arrest.

The originally all-night restaurant was closed with its lights switched off in the early hours of yesterday without any notice of closure.

Residents said it was usually closed from 9 pm to 11 pm, but it did not reopen on Sunday. The restaurant was shown as "closed" on dining app OpenRice.

Neighbors said they had heard that the shop would be closing down since it was involved in a murder case, and they learned from the restaurant staff that "they will stop operations at the end of [April]."

A customer, upset to find the decades-old shop closed, expressed shock at learning that the owner was involved in the murder.

The chairman of the building's owners' corporation, Sing, said "residents of the building are happy and can sleep well" as they would no longer be disturbed by the noise.

But a nearby 24-hour store owner said the closure would affect his business, as diners usually dropped by to grab drinks after a meal.

Some web users said the metal gate looked new and should only have been replaced not long ago.

Hui appeared in a Tuen Mun magistrates' court on Wednesday and was denied bail and remanded in custody with a hearing set for Thursday.