Police are investigating the death of a woman in the United Kingdom after she took diet pills that she bought online, British authorities said. The West Mercia Police Department in western England issued a warning this week after Eloise Parry, 21, died on April 12, shortly after she took pills she had bought online to lose weight, according to police. “We are undoubtedly concerned over the origin and sale of these pills and are working with partner agencies to establish where they were bought from and how they were advertised,” Chief Inspector Jennifer Mattinson said in a statement.