Jeep Cherokee Laredo shuts down

92' Jeep Cherokee Laredo
150,000 miles V6 Automatic 4WD

I was negotiating a curve when the steering suddenly became rough. It was difficult to turn the wheel. I noticed my brakes were failing also.
Shortly afterwards, the Jeep slowed on its own to a crawl and everything shut off. No lights. No engine.

I waited 5 minutes and it started up the first try.
I drove it home and haven't driven it since.

All the fluids were fine.

What could the problem (s) be?
Thank you for your time.