A Toronto jury says it has unanimously reached a verdict for one of two men accused in an alleged terror plot to derail a passenger train travelling from New York to Toronto.

However, the 12-member jury says it is at an impasse on some of the counts against the co-accused in the case and has asked for guidance from the judge.

Raed Jaser and Chiheb Esseghaier were arrested in 2013 following an investigation into the alleged plot that involved an undercover FBI agent.

Both men are charged with two counts of conspiracy and two counts of participating in or contributing to a terrorist group. Esseghaier is also facing a fifth terror-related charge.

The jury was careful not to reveal which of the two men it had reached a unanimous verdict for, and also did not reveal how many charges it was unable to come to a decision on.

Justice Michael Code, who has been presiding over the case, asked the jury to “please try once again to reach a verdict.”