Authorities searched a pond near the Massachusetts home of New England Patriots tight end Aaron Hernandez on Monday as their investigation of the killing of an acquaintance entered its second week.

Dozens of reporters continued to camp out in front of Hernandez's North Attleborough home, but police and the Bristol County District Attorney's office have said little about the circumstances surrounding the shooting death of 27-year-old Odin Lloyd, whose body was discovered a mile from Hernandez's home. Lloyd's death has been ruled a homicide.

ABC News on Friday reported that authorities were expected to execute an arrest warrant at some point for Hernandez for obstruction of justice, but that has yet to occur.

State police officers and dogs searched Hernandez's home for more than 3½ hours Saturday. Michael Fee, an attorney for Hernandez, has said he would not comment on the searches.

The arrest warrant was prepared last week after police discovered that the security system at Hernandez's home, along with his cellphone, were destroyed, sources told ABC News.

Surveillance video from the neighborhood shows Hernandez with Lloyd and two other people hours before Lloyd was killed last week, sources confirmed to ABC News late Thursday.