Serbia's pro-Western President Boris Tadic has received death threats amid a surge in tension a week before a crucial parliamentary election, officials and media said Monday. Government Minister Mladjan Dinkic said on B92 radio that "those are serious threats that should be dealt with by the prosecutor's office and the security services." Dinkic gave no other details. The Blic daily reported that Tadic received a letter accusing him of "treason" and warning he will "receive what he deserves - a bullet in the forehead." Tadic's office refused to confirm or deny the reports. Tadic has faced increased criticism from nationalists since he endorsed a pre-membership agreement that was signed last week with the European Union.