The Spanish National Police seized some 300,000 unauthorized COVID-19 antigen tests in several industrial buildings near the nation’s capital, authorities said on Thursday. As reported by the national police, an investigation started on Dec. 28 after agents learned about the possible distribution of antigen tests that did not comply with specific protocols set by the Spanish Ministry of Health. In less than 24 hours, agents managed to locate and block the distribution of the merchandise, Spanish police said in a Dec. 30 statement. The merchandise was found in a well-known industrial estate in the municipality of Fuenlabrada, a suburb in southern Madrid. “Agents carried out an investigation in order to inspect these products corresponding to four companies located in five warehouses,” the department wrote in the statement. “In total, around a million tests were analyzed, of which about 300,000 were intervened due to deficiencies in the documentary procedures or because they lacked authorization …