The US embassy in India warned US citizens today of likely terrorist attacks in or around New Delhi and Mumbai in the run-up to the country's Independence Day celebrations next week.
The warning came a day after British police said they had arrested 24 people and foiled a major plot to attack transatlantic airliners.
India celebrates the anniversary of independence from British colonial rule on August 15th.
"We have urged US citizens to keep a low profile, be alert and attentive to their surroundings," an embassy spokesman said.
"The embassy has learned that foreign terrorists, possibly including members of al-Qaeda, allegedly intend to carry out a series of attacks," he said, adding the attacks might occur in or around New Delhi and Mumbai.
The information was gathered by US intelligence agencies and the embassy was working closely with the Indian government, he said.
Mumbai, India's commercial and entertainment hub, was hit by a series of bomb blasts a month ago that killed 186 people and wounded hundreds more.