The two vehicles collided on Friday night just after 7:30 near East 74th Street and First Avenue.
All four injuries are minor.
The driver of the cab stayed on the scene.
Investigators are trying to piece together what happened.
----------
* Get Eyewitness News Delivered
* More Manhattan news
* Send us a news tip
* Download the abc7NY app for breaking news alerts
* Follow us on YouTube
Submit a tip or story idea to Eyewitness News
Have a breaking news tip or an idea for a story we should cover? Send it to Eyewitness News using the form below. If attaching a video or photo, terms of use apply.