NAPANEE, Ont. -- Police say three people will be charged after Mohawk protesters calling for an inquiry into missing and murdered aboriginal women occupied CN Rail tracks in eastern Ontario.

Provincial police say demonstrators moved onto the tracks Saturday morning in Napanee, east of Belleville, leading to CN issuing a stop order for all trains.

Police say a man struck the window of an unmarked police cruiser, breaking the glass.

Sgt. Kristine Rae says four people were arrested, and that three of them will face charges that have yet to be determined by investigators.

The stop order was lifted early in the afternoon, and train service is resuming.

Via Rail says the demonstration disrupted service on its Toronto to Montreal and Toronto to Ottawa routes, with shuttle buses dispatched to get affected passengers around the protest site.

Demonstrators had vowed on Friday to step up their protest in response to a parliamentary report into missing and murdered indigenous women that rejected numerous calls for a full public inquiry.

Spokesman Shawn Brant has said that there will be consequences for a national inquiry not being called.

The activists have been blockading a road east of Belleville since last Sunday night.

The release of the missing women report on Friday set off a firestorm of criticism from opposition critics, First Nation leaders and human rights groups.

Liberal and NDP members who sat on the all-party panel issued their own dissenting reports, accusing the federal Conservatives of sanitizing the final report on an ongoing crisis that has caught the attention of the United Nations.

Among its 16 recommendations, the report calls on the Conservative government to work with the provinces, territories and municipalities to create a public awareness and prevention campaign focusing on violence against aboriginal women and girls.

It's estimated there are hundreds of cases of missing and murdered aboriginal women in Canada dating back to the 1960s -- officially as many as 600, and likely hundreds more unreported victims.

With files from APTN, CJOJ