In a major security breach, the US Consulate in Chennai came under attack from an Islamic mob, infuriated over the controversial film denigrating the Prophet.Friday evening's vandalism took place despite the warning that US installations around the globe are possible targets of Muslim fury. The fortified consulate, on the arterial Anna Salai, is a stone's throw from Chief Minister Jayalalithaa's Poes Garden residence.The bullet proof glass ceiling of the cabin at the entrance of the visa section, CCTV camera and sun shades were damaged while some of the protestors even scaled the iron grills above the compound wall and damaged a few lights. The security cabin at the main entrance was destroyed and gates on both sides bore the brunt of the mob's fury.It all began with the proposed siege of the consulate by the radical Tamil Nadu Muslim Munnetra Kazhagam (TMMK). While any protest in that area would be stopped at a distance, this time they had no security to prevent them from proceeding further.When over 2000 people approached the consulate from the rear, the mob took everyone by surprise by raining stones on the building.There were only around 20 policemen, who stood mute witness to the attack. Even the riot control vehicle parked on the front side proved to be of no use, showing that this was a clear security breach. Specially since the previous day another Islamic outfit, the Socialist Democratic Party of India (SDPI), organised a protest on the same issue near the consulate.It took more than half an hour for reinforcements to come in and clear the area. The place resembled a war zone and traffic on the Anna Salai was held up for some time.Few workers of TMMK have been arrested in connection with the incident and more arrests would follow, police said.TMMK general secretary denied his party's involvement in the attack but said it was reflective of the hurt sentiments of the Muslim community. He said the siege was to register their protest against the film, which was a travesty of Islam."The director should apologise for wantonly hurting our religious sentiments," he maintained.