Toronto police will be consulting with the Crown next Wednesday to discuss whether charges will be laid against a TTC driver after a fatal collision involving a bus and a crane truck.

Const. Carl Andersen did not provide details on the nature of the charges but confirmed that a small quantity of drugs had been discovered several hours after the crash.

"We did locate in his belongings a substance which we believe might be marijuana," Andersen alleged on Thursday.

He added, however, that there was no indication that the 52-year-old TTC driver was under the influence at the time of the collision.

Police said a drug test was not administered after the crash and that the substance has been sent for analysis.

In a separate investigation conducted by the TTC, the transit commission said in a statement released on Thursday that the "TTC found no evidence of impairment on the part of the operator."

The driver, whose name has not been released by police, has been relieved of his duties, the TTC said in the statement.

Police are continuing to investigate the collision. Andersen said police have reviewed all the footage from the four cameras inside the bus.

"We were able to identify the occupants, where they were seated and what happened in the collision sequence. It was very dramatic," Andersen said.

Jadranka Petrova, 43, was sitting on the left side of the bus, in an aisle seat directly behind the rear doors. She was killed after the TTC bus rear-ended a crane truck Tuesday afternoon on Lawrence Avenue. Thirteen other passengers were also hurt.

With files from CTV's Natalie Johnson