A loud explosion ripped through the ground floor of the Marouba Café in the east of Sydney early Tuesday morning, causing about dozens of people to be evacuated from the multi-storey building on Anzac Parade.

Fire investigators at the scene discovered traces of accelerant inside the health food café, which was destroyed by a fire, according to ABC News.

Acting Superintendent Stacey Maloney said that the police are treating the fire as suspicious, and that they are currently speaking to the owners of the café about what caused the catastrophe.

Fire and Rescue Superintendent Paul Johnson said that there have been no reports of injuries from the fire. Around 30 firefighters were brought in to control and put out the fire, and the residents have since been permitted to return home.

A spokesperson for the New South Wales Police said that investigation is ongoing. A crime scene has been set up at the building because of the level of its damage.

Police officers and firefighters at the scene were tasked to stay in the premises throughout Tuesday morning, the spokesperson added.

Three of the four city-bound lanes were closed due to the fire and explosion, so it is expected that there will be major traffic delays during Tuesday morning’s peak hour.

For those who are headed south, the traffic there is not affected, according to the Sydney Morning Herald.

The spokesperson for the Transport Management Center said, “Only one of four north-bound lanes is available for traffic to slowly pass.”

“Motorists travelling city-bound on Anzac Parade via Maroubra should expect delays and follow the direction of emergency services and traffic controllers on site.”

Eastern Breaches Local Area Command detectives will be the ones who will investigate the incident and have encouraged anyone with information about the blaze to contact Crime Stoppers.