Five people have to be hospitalized in the North Sumatra city of Kabanjahe after the eruption of Mount Sinabung on Sunday. Jhonson Tarigan, a spokesman of the Sinabung Disaster Control Agency said the five people suffered difficulty in breathing after inhaling volcanic ashes. Their condition, however, is not serious but they need medical care, ANTARA quoted Johnson as saying here on Monday. He said Kabanjahe, which is located 22 kilometer away from the volcano is not as bad as Berastagi, a mountain resort city in the same Tanah Karo regency. All buildings and cars running or parked on the streets of Brastagi, which is only 10 kilometers from Mount Sinabung are blanketed with volcanic ashes, he said. All people in Berastagi have to wear masker, and most shops and offices are closed, he added. Data at the disaster control agency showed that by Monday, 4,739 people have been evacuated to refugee camps. The volcano erupted on Sunday afternoon spewing volcanic matters including sulfuric rocks. Last time Sinabung erupted before Sunday was in September, 2010.