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Multiple blasts rock Mumbai

NEW DELHI, India (CNN) --A series of near simultaneous blasts have shaken India's financial capital, Mumbai, leaving at least four people dead and more than 35 injured, police say.

One of the blasts occurred near the colonial-era Gateway to India monument -- a famous landmark and popular tourist attraction.

Other blasts struck in or close to one of the city's main Hindu temples and outside the main central railway station, Chhatrapati Sivaji Terminus, also known as Victoria Terminus.

Bomb squads have been rushed to the scenes of the explosions, police officials told CNN.

The Gateway to India is also situated close to one of Mumbai's top hotels, the Taj Mahal.

Sources in Mumbai, formerly known as Bombay, say police have moved quickly to place the city under virtual lockdown ensuring no one can leave or enter the city.

Security forces in the city have been on high alert following a series of bomb explosions on buses across the Mumbai metropolitan area over the past several months.

The most recent bus bombing took place on July 29, killing four people on board a packed commuter bus in the commercial heart of the city.

Police at the time said they suspected the attack was carried out by a militant group, the Lashker-e-Taiba -- one of two Islamic militant groups that New Delhi says was behind an attack on the Indian parliament in December 2001.

In 1993, a wave of bombings hit several buildings in Mumbai, killing at least 250 people and injuring dozens more.

Those blasts were blamed on underworld gangs seeking to avenge Muslim deaths during Hindu-Muslim riots following the destruction of a mosque in the holy city of Ayodhya in northern India.