A series of explosions that sparked a fire and damaged a number of cars outside a Belgium café Thursday morning was deliberately started but is not believed to be terrorism, authorities said.

According to Sky News Australia, about eight cars were damaged after two explosions occurred in Saint Gilles which is located south of Brussels.

Firefighters had quenched the fire by 1:30 a.m. local time and there were no casualties reported.

News.com.au reported that authorities had cordoned off the area and are investigating the incident.

Videos and photos posted on social media showed the aftermath of the explosions.

Click for more from Sky News Australia.