Four people died while another was injured in two separate incidents in the provinces of Rizal and Benguet due to Tropical Storm ''Maymay'' and the enhanced southwest monsoon, the Office of Civil Defense (OCD) reported on Thursday.

OCD Deputy Spokesperson Diego Agustin Mariano said two casualties died in a rockslide incident in Rodriguez, Rizal on Wednesday.

He also reported that the two other fatalities and another victim were injured in a landslide at La Trinidad, Benguet at 9 am on Thursday.

Mariano said search and rescue operations for the affected areas are ongoing. Flooding of up to waist deep were reported in Calumpit, Bulacan while the monsoon rains forced officials to cancel classes in Metro Manila.

The Philippine Atmospheric Geophysical and Astronomical Services Administration (Pagasa) said ''Maymay'', which crossed parts of Cordillera, Northern and Central Luzon was over the Philippine Sea as of its 5 pm bulletin.

As it leaves the country, Pagasa said severe winds and rainfall continue to be expected from ''Maymay'', which weakened into a depression when it hit the landmass Thursday. It was located east northwest from Echague, Isabela with winds of up to 45 kilometers per hour and gusts of up to 60 kilometers per hour.

It has picked up speed and is moving 35 kilometers per hour from 10 kilometers per hour.

Gale warning is in effect and rain of between 50 millimeters and 100 millimeters are expected over Ilocos Sur, La Union, Pangasinan and Benguet due to ''Maymay'', said Pagasa. For Metro Manila, Zambales, Bataan, Tarlac, Pampanga, Bulacan, Rizal, Cavite, Laguna and Batangas, rains of between 50 millimeters and 100 millimeters are forecast due to the southwest monsoon from Thursday to Friday afternoon.

Tropical Cyclone Warning Signal Number One is up over the southeastern portion of mainland Cagayan (Tuao, Piat, Enrile, Alcala, Amulung, Baggao, Solana, Tuguegarao City, Gattaran, Peñablanca, Iguig), Isabela, Quirino, the northeastern portion of Nueva Vizcaya (Dupax del Norte, Kasibu, Quezon, Bagabag, Diadi, Bayombong, Ambaguio, Villaverde, Bambang, Solano, Alfonso Castañeda, Dupax del Sur), the northern and central portions of Aurora (Dilasag, Casiguran, Dinalungan, Dipaculao), the eastern portion of Kalinga (City of Tabuk, Pinukpuk, Tanudan, Lubuagan, Rizal), the eastern portion of Mountain Province (Paracelis, Natonin, Barlig) and the eastern portion of Ifugao (Lagawe, Aguinaldo, Asipulo, Hingyon, Kiangan, Lamut, Alfonso Lista, Mayoyao, Banaue). PHS-Robina Asido