How many Uncles (Ommer) can be included and how is the reward distributed

Demetori

Hi,
how many uncles can one block include? I think I read somewhere that you can only include maximum 2 uncles, is that true?
If a block includes 2 uncles or more, how is the reward distributed between those?
If one uncle gets 7/8 of the static reward, the 7/8 is distributed between multiple uncles?

Thanks!