JAKARTA , Indonesia ( CNN ) -- The U.S. Embassy in Jakarta , Indonesia , warned Thursday of an indication of an attack to Bali on New Year 's Eve . The Embassy said the warning initially came from the Bali governor , Mangku Pastika , and that it passed on his alert verbatim . The governor , however , said there was no information about a new terrorist threat . `` We never release ( d ) any warning related to terror on New Year 's Eve , '' the governor 's office said in a statement after the Embassy released the warning . `` We however encourage both domestic and foreign tourists to be cautious , '' the governor 's office said . `` The terrorists hit Bali twice . Who knows what they will do next . '' Pastika 's office said there was only a general alert on the island because of the holiday . Terrorist groups , including Jemaah Islamiyah , have carried out repeated attacks in Bali and elsewhere in Indonesia since 2002 . The Embassy did not elaborate on the governor 's message , but the United States has a standing warning to U.S. citizens in Indonesia that extremists may target both official and private interests , including hotels , clubs , and shopping centers . `` In their work and daily living activities , and while traveling , U.S. citizens should be vigilant and prudent at all times , '' the U.S. State Department warning states . `` We urge U.S. citizens to monitor local news reports , vary their routes and times , and maintain a low profile . U.S. citizens must consider the security and safety preparedness of hotels , residences , restaurants , and entertainment or recreation venues that they frequent . '' Unknown attackers shot at foreigners in Banda Aceh , in northern Sumatra , last month , wounding a European development worker , the Embassy said . The attackers also targeted a house occupied by American teachers , but no U.S. citizens were hurt , it said . The most major recent attack was in July , when suspected Jemaah Islamiyah elements bombed two western hotels in Jakarta . The blasts at the JW Marriott and Ritz-Carlton hotels killed nine people -- including at least two presumed suicide bombers -- and wounded more than 50 , including U.S. citizens . Also in July , armed assailants in Papua killed several people , including security personnel and one Australian national , the Embassy said . Jemaah Islamiyah , said to have links to Osama bin Laden 's al Qaeda terrorist network , is blamed for the 2002 Bali bomb attacks in which 202 people , mainly foreign tourists , were killed . More than 300 people -- many of them young Australians on vacation -- were wounded by the massive blasts in the town of Kuta . Dozens of victims were burned beyond recognition or blown to pieces . The bombing was blamed on Jemaah Islamiyah . The group was also said to be behind an attack on the Australian embassy in Jakarta in 2004 in which nine people died , and an attack on the same Marriott hotel that killed eight the same year . -- CNN 's Atika Shubert in Bali and Andy Saputra in Jakarta contributed to this report .
U.S. Embassy in Jakarta , Indonesia , warns of an indication of an attack on Bali on New Year 's Eve . Score: 6 Terrorist groups have carried out repeated attacks on Bali and elsewhere in Indonesia since 2002 .