Metro Vancouver has issued an Air Quality Advisory due to high concentrations of fine particulate matter caused by smoke from B.C. wildfires.

According to officials, people with chronic medical conditions should avoid strenuous exercise outside until the advisory is lifted. Infants, the elderly, and people living with diabetes, lung and heart diseases are particularly at risk. Metro Vancouver says the advisory is expected to continue until there is a change in the weather. 

The advisory comes after a day of haze for Metro Vancouver residents. Concerned British Columbians took to social media posting photographs of the eerie haze and glowing orange sun. Some reported falling ash and debris from the sky. 

In the last 12 hours, the Surrey Fire Service responded to more than 60 reports of "grass fires, bark mulch fires and fires in boulevards and along roadways, as a result of the hot dry weather and the careless disposal of smoking material" -- a number 60 times greater than the same time period last year. 

There are currently 67 active wildfires larger than 10 hectares across B.C., according to BC Wildfire Service. Fires have already burned more than 127,000 hectares across the province this fire season.