Bush fires burn through the mass.

Multiple brush fires darkened skies over eastern Massachusetts earlier this week, as authorities warned residents to be careful.

Crews battled a fire in Salem Saturday night and a woman was found dead at the scene of a small brush fire in Millbury. By Monday morning, residents were smelling smoke from fires across eastern Massachusetts. Experts said “very dry conditions and gusty northwest winds” would cause the flames to spread quickly. All of southern New England has been placed under a red flag, which alerts firefighters and the public to adverse conditions that could lead to “dangerous wildfire growth.”

Follow below for regular updates on the situation.

According to the National Weather Service, small fires have broken out across Massachusetts in recent days, and the largest has consumed more than 100 acres in Salem.

Authorities said early Monday morning that smoke was “trapped” near the ground, but could disperse later in the day. Around 1 p.m. Monday afternoon, Accuweather’s smoke map showed wildfire smoke over Middleton, North Reading and Lynnfield. Another concentration of smoke was observed over Salem, Swampscott and near Nahant.

A detailed look at where there have been fires can be found through an interactive online map published by the National Interagency Fire Center. As of Monday afternoon, more than 50 recent and ongoing fires were reported. Many were concentrated in the southeastern part of the state and along I-90 from Worcester to Springfield.