Tower coordinator and an A321 flight crew reported a rejected takeoff due to a runway incursion.

Attributes
ACN	1725035
Time
Date	202002
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	A321
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Route In Use	None
Flight Plan	IFR
Aircraft 2
Make Model Name	EMB ERJ 190/195 ER/LR
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Route In Use	None
Flight Plan	IFR
Person 1
Function	Local Coordinator
Qualification	Air Traffic Control Fully Certified
Person 2
Function	Pilot Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Flight Crew Instrument
Events
Anomaly	ATC Issue All Types Conflict Ground Conflict Critical Ground Incursion Runway

Narrative:

I was working lce (local east); as a coordinator. I heard lcw (local west) clear aircraft X for takeoff. Right after that; I observed aircraft Y starting to cross [the] runway. I pointed it out to lcw and told them to have aircraft X abort their takeoff.

Original NASA ASRS Text

Title: Tower Coordinator and an A321 flight crew reported a rejected takeoff due to a runway incursion.

Narrative: I was working LCE (Local East); as a coordinator. I heard LCW (Local West) clear Aircraft X for takeoff. Right after that; I observed Aircraft Y starting to cross [the] runway. I pointed it out to LCW and told them to have Aircraft X abort their takeoff.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.