JAIPUR (Agencies) - Seven near-simultaneous bomb blasts tore through crowded markets in the Indian tourist city of Jaipur Tuesday, killing at least 80 people and wounding 150 in what police said was a terror attack. "We have information that 80 people have died," Rajasthan state home minister Gulab Chand Kataria told reporters. "One suspect was detained and is being investigated," he added in Jaipur, the state capital. As per the Indian Home Ministry sources, the blasts occurred at crowded marketplaces of the city including Hawa Mahal, Johri Bazaar, Tripolia where a Hanuman temple drew a large number of devotees, Chandpol, Manas Chowk and Bari Choppad, which are thickly populated areas of Jaipur. The blasts took place between 7:15pm and 7:45pm. One of the explosions went off near a packed Hindu temple, leaving pools of blood outside in the street and cycles and rickshaws in a mangled heap, television pictures showed. "We will not tolerate such activities at all," said Vasundhara Raje, chief minister of the desert state. Among the dead were a 10-year-old boy at the Hanuman (monkey god) temple, a bride in a bright red saree still wearing marriage bangles and a young man covered in blood who was left hanging over the twisted wreckage of a bicycle rickshaw, the Press Trust of India said. Shopping bags, bloodied sandals and shoes were strewn around Johri Bazaar, one of the hit markets, which security forces cleared quickly for fear of further blasts. "It's a terror attack," Rajasthan Police Director-General Amarjot Singh Gill told NDTV. Scores of people were taken to hospital in Jaipur. As per the sources, the Centre is sending National Security Guards to Jaipur. According to Hindustan Times, the Haryana government sounded a red alert in the wake of multiple explosions in Jaipur. Haryana Police Chief RS Dalal said the red alert has been declared as a precautionary measure. In Indian Punjab, all district police chiefs have been directed by state Police Chief N P S Aulakh to step up vigil. Government officials usually blame militants based in Pakistan for such attacks, which have plagued India in recent years. Junior home minister Shriprakash Jaiswal told reporters, "The people responsible for these attacks have foreign connections," but he refused to point a finger directly at traditional foe Pakistan. Police said seven blasts occurred within minutes of each other during the evening in crowded markets of old walled Jaipur, about 260 kilometres from New Delhi. "It's a terror attack. There was no (intelligence) report of this," police director general AS Gill told reporters. Prime Minister Manmohan Singh condemned the blasts and appealed for calm, while the United States immediately condemned the wave of bombings. "We're still collecting some information about this. But given the facts that we know now, quite clearly these bombs were intended to claim innocent lives and it's something that we very clearly condemn," US State Department spokesman Sean McCormack said. Historic Jaipur, which has a population of more than two million, is one of India's top tourist resorts and a favourite attraction for foreigners. Jaipur is popularly known as the 'pink city' because of the ochre-pink hue of its hill top forts, Hindu maharajah's palaces and crenellated city walls. State borders were sealed and a high alert sounded in Rajasthan state and neighbouring areas, police said. They said there were no immediate reports of any backlash. "There is peace in the town. Nobody should worry," Arvind Jain, a senior police official, told NDTV television. The government also issued a nationwide security alert, particularly in New Delhi, where roadblocks were set up on major roads, and the financial capital Mumbai. US ambassador to Delhi David Mulford condemned the bombs, saying, "there can be no possible justification for the murderous attack on innocent people." British Foreign Secretary David Miliband on Tuesday condemned the near-simultaneous bombings in the Indian city of Jaipur. "Today's bombings in Jaipur have shown again the horrific destruction which terrorism brings," Miliband said in a statement. French Foreign Minister Bernard Kouchner Tuesday expressed revulsion at bomb blasts and offered to step up help to India in fighting terrorism. The bombings took place as India marked the 10th anniversary of nuclear tests conducted on May 13 in Rajasthan, but it was unclear if there was any link. India has been plagued by bombings across the country in recent years and routinely points the finger at foreign-based militant groups fighting in the Kashmir. In October last year, an explosion killed six people and wounded 32 in a packed cinema hall in Ludhiana in Punjab state in northern India. Police called it a "terrorist" bombing. In August, 43 people were killed and 70 injured in the southern city of Hyderabad when attackers triggered blasts at an outdoor auditorium and a popular eatery. A series of explosions outside courts in three northern cities killed 13 last November.