Senior citizens and minors were part of the dense crowd in Divisoria despite a Metro Manila prohibition against them venturing from their homes amid the COVID-19 pandemic.
Shoppers were barely following social distancing rules while some were not wearing face shields.
The Manila Police District repeatedly reminded the public to wear face masks and face shields as well as to maintain distancing.
According to the MPD Station 11, around 600,000 shoppers go to Divisoria and Binondo daily.
Police were focused on Ilaya Street, where stalls were arranged in a row.
Nineteen personnel of the Police Community Precinct, two SWAT teams, and 37 personnel of the Philippine National Police-Special Action Force monitored the area.
Some 72 police are monitoring the streets of Juan Luna, Tabora, MD Santos, and Recto.
Offenders will be fined 1,000 pesos for the first offense, 3,000 pesos for the second offense, and 5,000 pesos and imprisonment for the third offense.