For a number of years in the early 2000s, the volcano's activity consisted mostly of infrequent ventings of ash into the uninhabited areas in the south. The ash falls occasionally extended into the northern and western parts of the island. In the most recent period of increased activity at the Soufrière Hills volcano, from November 2009 through February 2010, ash vented and there was a vulcanian explosion that sent pyroclastic flows down several sides of the mountain. Travel into parts of the exclusion zone was occasionally allowed, though only by a licence from the Royal Montserrat Police Force. Since 2014 the area has been split into multiple subzones with varying entry and use restrictions, based on volcanic activity: some areas even being (in 2020) open 24 hours and inhabited. The most dangerous zone, which includes the former capital, remains forbidden to casual visitors due to volcanic and other hazards, especially due to the lack of maintenance in destroyed areas. It is legal to visit even this area when accompanied by a government-authorized guide.