Warsaw – A Nazi death camp museum in Sobibor, eastern Poland, has been closed because it has not received enough funding from the regional government to remain open, the museum spokesman said Thursday.’Without money, the museum cannot function,’ museum spokesman Marek Bem told German Press Agency dpa.Some 250,000 people, mostly Jews, were killed at the Nazi German extermination camp Sobibor, located in occupied Poland during World War II. John Demjanjuk, sentenced last month to five years in prison as an accessory to more than 28,000 murders, was a guard at the camp. The Ukrainian-born 91-year-old was freed pending a possible appeal and was moved to a nursing home near Munich. The museum requires some 1 million zloty (361,000 dollars) a year to keep running, but has only received some 420,000 zloty this year, reported the daily Rzeczpospolita. The exhibits and tours cannot remain open because museum staff have been reduced by about half. The facility was slated to become a state museum in 2012 and receive funding from the Ministry of Culture, but discussions with the ministry have not yet brought any results. Some 20,000 people a year visit the memorial site.