India says two car bombs have killed 46 people and wounded more than 100 others in the country's financial capital Bombay (Mumbai).

Reports from the scene indicate the bombs were each placed in taxi cabs. One went off near the popular tourist site the Gateway of India monument. Minutes later, the second exploded near a crowded jewelry marketplace, the Zaveri Bazaar.

U.S. Secretary of State Colin Powell condemned the blasts. He telephoned India's Minister of External Affairs, Yashwant Sinha, to express his outrage at the attack and offer condolences.

There has been no claim of responsibility. In the past, India has blamed such incidents on Pakistan-backed Islamic militants. Islamabad quickly condemned the deadly bombings as an act of terror.

India's Deputy Prime Minister Lal Krishna Advani said the banned Students Islamic Movement of India and Lashkar-e-Taiba could be behind the bombings.

The explosions came hours after a government report said the remains of a temple-like structure have been found under the foundations of a centuries-old mosque that was destroyed by Hindu extremists in 1992 in the northern town of Ayodhya. Hindus claimed that the 16th century mosque was built after the razing of a temple to their god Rama. The 1992 destruction triggered Hindu-Muslim riots that killed 2,000 people.