Four customers, upset with their bill at a porridge restaurant along Upper Serangoon Road, overturned the table they had been dining on and wrecked the place using wooden chairs.

The Sunday Times understands that the four alleged culprits - three men and a woman - were drunk.

The incident occurred at Heng Long Teochew Porridge in the early hours of yesterday morning.

The customers were upset over their $28 bill, reported Shin Min Daily News. They had ordered porridge, pomfret and several side dishes, reported the Chinese evening daily.

A cleaner at the eatery told Shin Min that the customers argued heatedly with eatery staff over the price of their meal, before they tossed the dishes on the ground and flipped the marble-topped table, shattering it and leaving only its wooden frame intact.

They then picked up the wooden chairs in the restaurant and used them to smash the serving area, destroying the glass surfaces, before leaving.

Eatery staff called the police. The Sunday Times understands that the group left before officers arrived. No employees or customers were hurt in the encounter, staff told Shin Min.

A photo of the eatery showed broken glass scattered over the floor and a few mangled chairs. The serving area, where dishes are displayed, was also in disarray.

While no one was injured in the incident, some customers left quickly without finishing their food.

The police told The Sunday Times they were alerted to a case of mischief at 3.44am.

Investigations are ongoing.

The eatery is usually open from 10am to 4.30am daily. After the incident, staff closed the outlet temporarily and cleaned the place.

Employees also discarded the food that was on display at the wrecked serving area and swept up the broken glass. The restaurant was back in business by noon.