Another swine carcass was found floating in the Malolos River system in Barangay Bulihan in the City of Malolos on Sunday afternoon.
The animal was chopped with and its foul smell catching the attention of residents in the area.
Barangay Chairman Crisanto de Jesus ordered the turnover of the carcass to the city veterinary personnel for proper disposal.
On Friday, at least 10 dead piglets were found floating in a creek in Barangay Tikay also in the city and neither the cause of their death nor the identities of their owners are known.
Malolos Mayor Gilbert Gatchalian has ordered the city veterinarian to investigate the cause of the recent mysterious swine deaths in several villages of Malolos in coordination with the personnel of the Bureau of Animal Industry.
Almost two weeks ago in Guiguinto town, some 17 pigs died from African swine fever (ASF) as the Department of Agriculture reported.
League of Municipalities of the Philippines Bulacan Chapter President Mayor Ambrosio Cruz Jr. had already implemented quarantine measures and ordered no hogs will enter or go out of Guiguinto town to protect the hog industry.