A haze shut down part of W. 12 St. in the City of Erie Monday night.

Emergency crews were called just after 8 p.m. and learned a liquid nitrogen tank ruptured in Modern Industries.

They shut down 12th St. from Cherry to Liberty St. because the haze is causing visibility problems for drivers.

HAZMAT is on standby right now while crew members work to stop the leak, according to Jeff Carroll, deputy chief for the Erie Fire Department.

A tanker truck may need to be called to the scene if the leak cannot be stopped, Carroll told Erie News Now.

Depending on how long it takes to stop the leak, it could be a while before road is reopened, Carroll said.

In the meantime, he said the gas is not harmful or poisonous to the body and does not pose a fire risk.