SACRAMENTO, Calif. (KTXL) — Fire crews are working to remove unknown chemicals that were stored inside an abandoned home, according to the Sacramento Fire Department.

Officials said crews in the department’s hazardous materials type-1 teams are at the abandoned house, located near 19th and Matson Drive in South Sacramento. According to Sacramento Fire Capt. Andrew Ramos, the hazardous materials belong to a chemistry professor who died.

It’s unknown if the chemist worked for a school or private company, according to Ramos.

Ramos said the chemicals are stored and sealed and the containers are all in small amounts. Crews could be at the house for two days to gather chemicals.

As crews work on removing the unknown chemicals, 19th street is closed to through traffic at Matson Drive, the department said in its tweet.

According to the department’s tweet, the chemicals “will be identified, labeled, packaged and removed for proper disposal.”

The department will have a third party to dispose of the chemicals, but they will not handle the unknown chemicals.

“We’re just here with our level one hazmat team and they are going through and very meticulously checking all the chemicals,” Ramos said.