Update, 2:16 p.m. | An FBI Evidence Response Team — including a large truck and a Chevrolet Suburban — just arrived at the incinerator. They are now parked outside along with several State Police cruisers.

HARTFORD — The Federal Bureau of Investigation and Connecticut State Police spent Sunday morning sifting through trash at an incinerator here as they continue to search for clues in the disappearance of Annie Le GRD ’13, who has not been seen since Tuesday morning.

State Police cars could be seen parked outside the facility, which is operated by the Connecticut Resource Recovery Authority, and workers in white hazmat suits are searching through piles of garbage.

FBI agent Bill Reiner said officials are “following the trash” that left 10 Amistad St., the laboratory where Le was last seen, according to The Associated Press. He declined to comment further.

Investigators on Thursday were seen sifting through the trash outside the Amistad Street building, but it is unclear if they found anything of interest in that search.

Zeke Miller reported from Hartford, and Harrison Korn from New Haven.