Reported so far by legitimate sources (newest at the top):

• Scott Levin (Buffalo anchor):

Source confirms to me that the alleged incident involving Patrick Kane happened at his home in Hamburg.

17:27:31 GMT-0400 (Eastern Standard Time)

(mbm66: Which would explain this report: "Neighbors told the Tribune that three unmarked police cars descended upon Kane's lakefront property Sunday night and several plainclothes officers entered his home using flashlights. At least one officer wore gloves and could be seen taking pictures in the front, said one witness, who asked not to be named." )

• Tim Graham (Buffalo/Toronto reporter):

From @TheBuffaloNews law-enforcement source: Roseanne Johnson, Erie Cnty DA Special Victims Bureau, is prosecutor assigned to Kane case

15:47:21 GMT-0400 (Eastern Standard Time)

Older:

• Mark Lazerus (Chicago reporter):

Blackhawks say: "We are aware of the matter and are in the process of gathering information. It would be inappropriate to comment further at this time." That's an official team statement, responding to a request for comment on the Patrick Kane report.

• The Buffalo News:

Patrick Kane, the star player of the Chicago Blackhawks who grew up in South Buffalo, is the target of a rape investigation by Hamburg police for an incident that occurred over the last weekend, two law enforcement sources have told The Buffalo News.

A local woman has accused Kane of a sexual assault, the sources said.

The law enforcement sources said that the woman went to a hospital where a rape kit was performed.

• Tim Graham (Buffalo/Toronto reporter):

To be clear: Kane still is being investigated and no charges have been filed. Info in this and previous tweet from law-enforcement source.

However, there is a belief from multiple sources Kane might turn himself in as early as today.

Two of my law-enforcement sources used the phrase "turn himself in." Read into that what you will.

• Jill Perkins (7 Eyewitness News):

A spokesperson for @NHL tells me he cannot elaborate on what league is aware of with respect to the investigation into #PatrickKane

Teresa Weakley (Buffalo anchor): NHL confirms they "are aware there is a police investigation into rape allegations against #PatrickKane This tweet has now been deleted.

• Tim Graham (Buffalo/Toronto reporter):

The Patrick Kane investigation is a rape investigation.

• 7 Eyewitness News:

JUST IN: Sources say police investigating alleged incident involving Patrick Kane and a woman that began at a bar

"Sources in Hamburg tell 7 Eyewitness News that police are investigating an alleged incident involving Chicago Blackhawks player and South Buffalo native Patrick Kane and a woman that began at a bar in Evans."

• The Buffalo News:

Hamburg police are investigating an incident reportedly involving Patrick Kane, the Chicago Blackhawks star, two sources with knowledge of the probe have told The Buffalo News.

Two sources said Hamburg police officials have forbidden their officers and detectives from publicly discussing the investigation.

“We can neither confirm nor deny the existence or nonexistence of a criminal investigation until such a time as a person is charged with a crime,” said Hamburg Police Chief Gregory G. Wickett.

Edit: Since the post was getting long and hard to scroll by on mobile, I've trimmed the oldest article which was originally posted in full and I've also removed the rumour about his house parties since it looks like it isn't relevant.