Lashus (l) and Akiba.UPDATE: Third suspect arrested.

MBTA Transit Police report arresting two of four people they say ended an argument early Morning on an Orange Line platform at Downtown Crossing by beating and kicking their solitary opponent.

Karen Akiba, 22 of Cambridge, and Bryon Lashus, 32 of Watertown, will be arraigned today in Boston Municipal Court on charges of assault and battery on a disabled person and assault and battery with a dangerous weapon following their arrests for an incident around 12:30 a.m. on the southbound Orange Line platform.

Police say the victim got into an argument with a woman and that her three companions attacked him, leaving him with "lacerations and swelling to his facial and torso areas."

Police add they continue to hunt additional suspects.

Innocent, etc.

Happened shortly after 5:50 p.m., based on the tweets from people in suddenly sweltering cars sitting on tracks just outside the station. Rescuers were able to get him safely off the tracks in just a few minutes.

"Well/at least a/c back on," Frank Conte reported at 5:57. Andrew Choy praised the driver on his train for keeping riders up to date: "Packed train and no air had potential for freak-outs."

The Globe reports police are looking for two men and two women who beat up a man on the southbound Orange Line platform shortly after midnight, then boarded a train towards Forest Hills.

A dead trolley at Reservoir, dead trains at Kendall and somewhere on the Ashmont line, signal and track problems on the Fitchburg Line and, oh, yeah, a freight-train derailment on the Haverhill line meant all sorts of fun for commuters this morning.

Seems a guy decided the commuter-rail tracks near Back Bay was a great place to take a nap yesterday.

Ed. note: No, he was not wearing an oversized Fedora and a blue suit.

Stuck.

Trains are dead in Revere thanks to a downed wire, so that that means busing between Orient Heights and Wonderland - and a chance for passengers stuck near Revere Beach to get a first-hand taste of how the Revere Fire Department evacuates people from trains. Expect, as they say, significant delays.

Bit of a problem at Eliot on the Riverside Line tonight, where wires have come down, trapping a train, Brian D'Amico reports. Buses to the rescue, the T says.

MBTA Transit Police report a man they initially intended to just ticket for drinking a malt beverage and smoking a cigarette at Forest Hills last night found himself under arrest when they discovered he was wanted in Chelsea for assault with intent to murder and aggravated assault.

According to a police report, around 9:30 p.m., an officer making a routine swing through the area around the 39 bus berth under the overpass noticed:

[A] male party, later identified as Ronaldo Taylor, sitting on a retaining wall behind the Inspector's booth. I approached Taylor to see what he was doing. As I was approaching him, I observed he had an open container of a 40 ounce malt beverage and he was smoking a cigarette.