It forced the postponement of Saturday's Bundesliga fixture between Cologne and Mainz.
At a press conference, it was confirmed Rafati had attempted to kill himself, but was found by his assistant referees before it was too late.
Dr Zwanziger: "Babak Rafati is in a stable condition and he is being treated in intensive care.
"It is a difficult situation for the assistant referees to deal with, but they seem to be coping. They are receiving psychological assistance.
"He was found lying in the bath tub and there was a lot of blood. They tried everything."
The match between Cologne and Mainz was called off after Rafati failed to appear.
His assistants became concerned when the Hanover-based referee did not show up for a scheduled pre-match meeting before the transfer from their hotel to the Mungersdorfer Stadion.
Source: FOOTYMAD
