Mexico's Colima volcano spewed a giant 3.5-kilometer-high (two miles) column of ash on Thursday that rained down on a nearby city, authorities said.

The Jalisco state civil protection agency said a "moderate" quantity of ash fell on Ciudad Guzman, a town near the western state of Colima, where the volcano is located.

A civil protection official said there were no reports of damage or injuries in the city of 100,000 people.

Officials urged the population to use masks if they venture out of their homes, remove excess ash from rooftops so they don't collapse and cover water drains.

The 3,860-meter (12,500-foot) mountain, also known as the Volcano of Fire, is among the most active in the country.