6. Cover mirrors and pictures:

Some[1] write that an Onen is to cover the mirrors [and pictures] as soon as he hears of the death, and they are to remain covered until the end of Shiva. Some[2] write that they are to remain covered even over Shabbos. See Chapter 15 Halacha 2 for the full details of this subject!

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[1] Darkei Chesed p. 33 says to cover at time of Petira; Nitei Gavriel 25:7, however see Nitei Gavriel 80:15 that he contradicts himself

[2] Nitei Gavriel 25:7