Yes In the Ireland vs Netherlands match in the 2011 World Cup which had four run outs in consecutive balls in the last four balls of the innings:
49.3 AF Buurman run out 26 (49m 30b 4x4 0x6)
49.4 PM Seelaar run out 0 (1m 1b 0x4 0x6)
49.5 Adeel Raja run out 0 (1m 0b 0x4 0x6)
49.6 Mudassar Bukhari run out 11 (22m 8b 0x4 1x6)
Given that, it doesn't seem too unlikely there are going to be quite a lot of these incidents out there.