why is my car swerving and driverside rear wheel smoking?

[Blue A]

My ABS light came on today, and a couple mins later my car seemed to be swerving slightly and making alot of noise, when I stopped I noticed there was a little bit of smoke coming out of the driver side rear wheel. Anyone know what this could be? I have a 2000 ford focus

 

[Greg]

You either have a warped caliper or a collapsed brake line sir.

 

[TSNE]

Check brakes
Check wheel bearing
Make sure Emergency break was off