Mysterious Foam Covers Japanese City After Earthquake

April 17, 2016 Updated: April 17, 2016

Following the 7.3-magnitude earthquake that shook southern Japan, residents in the city of Fukuoka noticed an odd phenomenon: foam had filled the streets.

The foamy bubbles were spotted in the early hours on Saturday morning, and Twitter users posted them online. One termed the foam as “disgusting.”

“I saw it just after the earthquake,” said Kazuki Nabeta, who lives in the district of Tenjin, according to The Independent.

Some claimed the quake caused a pipe to burst, sending the foam everywhere, according to Mashable.

“People were posting pictures on Twitter and it was near my house, so I went out to have a look,” said Nabeta. “There was a fire engine there. There wasn’t anything special about it – it was normal foam.”

More than 1,500 people were injured and about 31 killed by the earthquake in southern Kyushu island. Authorities have said they expect the death toll to rise.

Japanese Prime Minister Shinzo Abe said the country is looking for survivors.

“Nothing is more important than human life and it’s a race against time. Daytime today is the big test. I want rescue activities to continue with the utmost effort,” he said, according to reporters.

The disaster left approximately 410,000 homes without water and 200,000 homes without power.