Zeeshan Ahmed fears peaceful Muslims will suffer as a result of the siege in Sydney which he describes as an "act by a madman".
Seventeen people were held hostage by an armed gunman, self-styled sheikh Man Haron Monis, who stormed into a cafe and forced crying women to hold a black flag with white Arabic writing up to the window Monday morning in Sydney's CBD.
A swarm of heavily armed police stormed a cafe early yesterday morning, ending the siege by the Iranian-born gunman, who had held the hostages for more than 16 hours. Two hostages died.
Mr Ahmed, a Papamoa IT support specialist, was upset when he learned what was happening in Sydney.
Mr Ahmed, who was raised in Pakistan, is a Muslim.