Germany has not found any further cases of foot-and-mouth disease, agriculture minister Cem Oezdemir said on Wednesday, adding that experts were working day and night to establish the source of the country's first outbreak of the disease in decades.

German authorities said on Tuesday they had found no new cases of the livestock illness foot-and-mouth disease following intensive testing around the area where the first case was confirmed last week.

The UK has introduced a ban on pigs, sheep and cattle imports from Germany after a case of foot-and-mouth disease was confirmed in the country. The government said on Tuesday it will no longer approve health certificates for animals,