MANILA (Reuters) - Philippines’ President Rodrigo Duterte warned of another potentially damaging cyclone approaching the Southeast Asian nation on Monday, as the death toll from the world’s strongest typhoon of the year rose to 20.Typhoon Goni, which battered provinces south of the capital Manila on Sunday with gusts of up to 310 kilometres per hour (190 mph), is the 18th to hit the Philippines this year and one of the strongest typhoons since Haiyan killed more than 6,300 people in 2013. The country’s disaster agency on Monday said 20 people had been killed in Albay and Catanduane provinces, up from the 16 it had previously reported. Officials said a forcible evacuation of more than 345,000 people had averted more deaths. Now another storm, Atsani, with gusts of up to 80 kmph (49 mph), is gaining strength over the Pacific Ocean and is expected to make landfall late this week. “It’s not as powerful as (Goni) but it would cause damage in its path, on the roads and bridges,” Duterte said in a televised cabinet meeting. The state weather agency forecasts two to three more typhoons to enter the Philippines in November and another one to two in December. The Philippines, an archipelago of more than 7,600 islands, sees around 20 tropical storms annually. Residents in provinces south of Manila have started clearing homes of mud and debris, while people in still flooded communities were separated in tents inside evacuation centres to avoid the spread of the coronavirus. Goni partially damaged more than 55,000 homes and flattened 20,000 more, said disaster management chief Ricardo Jalad in the meeting. More than 13,000 homes, some engulfed by an up to five metre (16.4 ft) storm surge, were damaged in the island province of Catanduanes when Goni made landfall on Sunday, provincial governor Joseph Cua told a news conference.