London, July 10, SPA -- Thousands of people evacuated fromBirmingham's city center faced "a real and very crediblethreat," police Chief Constable Paul Scott said Sunday. Scott declined to describe the nature of the threat, butsaid intelligence indicated it was genuine. Some 20,000people were evacuated Saturday night because ofintelligence suggesting a security threat. It was unclear whether the threat had any ties toThursday's deadly terrorist attacks in London. Stuart Hyde,assistant chief constable of the West Midlands police, saidSaturday night that there was no evidence linking the two. The evacuation of the bustling Broad Street entertainmentdistrict and the city's Chinese quarter followedintelligence warning of a "substantial threat," Hyde was quoted as saying by The Associated Press.--SPA1129 Local Time 0829 GMT www.spa.gov.sa/275782