'Saved by the Bell' star Dustin Diamond diagnosed with stage 4 cancer, undergoing chemo - Entertainment Weekly

A rep for the actor says Diamond, 44, will release a statement when a formal diagnosis has been made, but calls the cancer diagnosis "serious" and confirms it is stage four.

As testing continues, the actor remains at the hospital and will continue to be there "for awhile.".

"He's undergoing chemo so he will be there at least another week and then we will figure out when he gets to come home," explains his rep.