The Philippine Institute of Volcanology and Seismology raised the alert level for Taal volcano, near Manila, on Saturday due to "increasing unrest."

The institute raised the alert level for the volcano to 3 on a scale of 5 after the island volcano spewed plumes and logged earthquakes around 7:22 a.m. local time.

The institute said the volcano in Batangas province, 66 kilometers south of Manila, "generated a short-lived phreatomagmatic burst followed by a nearly continuous phreatomagmatic activity that generated plumes 1,500 meters accompanied by volcanic earthquakes."