Listen to Selena Gomez on iHeartRadio | Listen to Justin Bieber on iHeartRadio

(TMZ) - Selena Gomez spent the last day blocking her phone numbers and other communication devices so Justin Bieber cannot contact her, TMZ has learned.

Sources familiar with the situation tell TMZ that Selena wants no contact with Justin, so whatever they tried hashing out during their sit-down last Sunday didn't work.  She has blocked her phone (which includes texting).  For some reason, she's still following Justin on Twitter, but we're told she's blocked him on all forms of contact.

And TMZ reports that the breakup absolutely, positively involved another woman, though TMZ's sources didn't know which one.  There's been speculation that it's a Victoria's Secret model.  It's not for certain if it's her, but TMZ reports it involves another woman.

Read more: TMZ 

Photo Credit Getty Images