The 2001 Humber Refinery explosion occurred in the parish that has a population of what, as of 2011?
South Killingholme South Killingholme is a village and civil parish in North Lincolnshire, England. The population of the civil parish at the 2011 census was 1,108.
Haltwhistle Haltwhistle is a small town and civil parish in Northumberland, England, 10 mi east of Brampton, near Hadrian's Wall. It had a population of 3,811 at the 2011 Census.