Four provinces in Mindanao suffered heavy flooding due to heavy rain caused by a low pressure area, east of Mindanao. Flooding according to the National Disaster Risk Reduction and Management Council occurred because of overflowing rivers. The rivers were Bulatukan River, Davao del Sur; Pulangui River in North Cotabato; Pagalungan River, Simuay River, Rio Grande Mindanao, and Tunggol River in Maguindanao. Maradugao, Malipay, and Saguirayan rivers in Buikidnon as well as Paquibatao River in Davao City; and Lasang River in Davao del Norte.
The government reports that so far, there have been five dead, 2 injured with a total of 120,038 families affected in 395 barangays (villages), and 48 municipalities, 5 cities in 9 provinces.
Estimated damage so far is already in the 411,030,384 million pesos.
The government has taken the following action so far.
Food assistance, as well as clothing and utensils have been provided to affected families. It has also deployed damage assessment and quick response teams. The City of Cotabato declared the city under a state of Calamity effective 13 June 2011. It was reported that up to 90 percent of Cotabato City was under water. Philippine marines were also deployed to help flooded commuters in downtown Jolo.