Police on Tuesday found the body of 21-year-old Canadian tourist who had been missing for weeks wedged into a water tank on the roof of a Los Angeles hotel, according to LA Weekly.

At 10:13 a.m., LAPD officals reported the discovery of Elisa Lam on the roof of the Cecil Hotel in downtown Los Angeles. Cecil hotel management said doors to the roof were locked and alarmed, but that someone could have otherwise accessed the tank.

The Los Angeles County Department of Public Health issued a do-not-drink order while its lab analyzes the water in the tank where Lam was found, said Terrance Powell, a director coordinating the department's response. The tanks provide water that would have been used by hotel guests for washing and drinking, and Powell added that the water was also used for cooking in the hotel.

"Our biggest concern is going to be fecal contamination because of the body in the water," Powell said.

Lam was seen in an elevator in the hotel lobby, caught on a security video released by the police department earlier in February. A Vancouver native, she reportedly traveled to Los Angeles alone on Jan. 26 and was last seen on Jan. 31 at the Cecil Hotel, polie said. It has not been confirmed when the surveillance video was recorded and police said she had been in touch with her family daily until she disappeared.

Lam's body was discovered by a maintenance worker at the hotel after guests complained of low water pressure. Investigators are in the midst of determining whether her death was the result of foul play or "a very, very strang accident," police spokesperson officer Sara Faden said.

"The location of the water tanks is very small and configured in a very tight way so it's a little more difficult to get the body out," Faden said. The body was discovered at about 10 a.m., but officials spent much of the day struggling to remove it from the water tank.