While a group of celebrites have launched campaigns seeking relief aid for earthquake-ravaged Japan, a distinct group of stars have surfaced on the negative side of the situation with misguided activity on the omnipresent microblogging site Twitter.

Celebs like 50 Cent, Gilbert Gottfried, and now the 'Family Guy' scriptwriter Alec Sulkin have sparked off a row with insensitive tweets on the disaster that has caused over 10,000 deaths and left Japan facing a potential nuclear crisis.

Alec Sulkin was latest to join the disgrace list with a tweet on the death toll of the Japan earthquake and the consequent tsunami.

If you wanna feel better about this earthquake in Japan, google 'Pearl Harbor death toll.'

He later deleted the tweet and apologized for it: Yesterday death toll = 200. Today = 10,000. I am sorry for my insensitive Tweet. It's gone.

Meanwhile, Gottfried has apologized for his tweet that led to his sacking. On Tuesday, the comedian tweeted, Sincerely apologize to anyone who was offended by my attempt at humor regarding the tragedy in Japan.

A second tweet read: I meant no disrespect, and my thoughts are with the victims and their families.

Gottfried lost his job as the voice of the Aflac duck due to his tweets.

Gilbert's recent comments about the crisis in Japan were lacking in humor and certainly do not represent the thoughts and feelings of anyone at Aflac, Michael Zuna, a senior VP and chief marketing officer for the insurance giant, said in a statement.

Aflac Japan - and, by extension, Japan itself - is part of the Aflac family, and there is no place for anything but compassion and concern during these difficult times.

Start the slideshow to go through the inappropriate tweets of the celebs on the Japan tragedy: