PNG ICO ICNS MORE
Business & finance
Glyph
48x48 Free Time Icons
warning, medicine, siren
Black
48x48
Abort, exclamation, Up
Tomato
anxiety, Alert, hospital
Red
warning, Alert, Hand
PNG MORE
24x24 Free Application Icons
stop, Abort, Block
24x24
Attack, Error, Alert
DarkSlateGray
Error, sign, Blocked
Alert
Salmon