London, Muharram 25, 1436, November 18, 2014, SPA -- A bird flu infection at a duck breeding farm in the north of England prompted the culling of 6,000 birds Tuesday, dpa reported. Vets were investigating whether this outbreak is linked to that at a poultry farm in the Netherlands at the weekend and one in Germany earlier in the month. A 10-kilometre exclusion zone was set up around the Yorkshire village of Nafferton to curb the spread of the disease. The virus has been identified as H5 but not the H5N1 strain that can be deadly to humans. Environment Secretary Liz Truss said the risk to public health was very low and the Environment Department's Animal and Plant Health Agency said the risk of the disease spreading was "probably quite low." --SPA 14:02 LOCAL TIME 11:02 GMT www.spa.gov.sa/w