The Marikina River was raised to first alarm Wednesday morning after its water level reached 15 meters at the Sto. Niño monitoring station amid continued rain brought by Typhoon Neneng and the southwest monsoon, or habagat.

As of 8:56 a.m. Aug. 19, authorities raised the river's alert level to first alarm as water levels continued to rise during heavy rainfall in Metro Manila.

The first alarm signals the possible need for residents in low-lying areas along the river to prepare for evacuation.

According to Edniel Parrosa's report, despite the rising water level, some residents were still seen fishing along the river. A few civilians said they continued to catch fish, including tilapia and catfish, which they planned to share with their families.

Authorities have urged residents near the river and other flood-prone areas to remain alert and follow evacuation directives if conditions worsen.