NEW DELHI — A coordinated series of explosions struck a park and crowded shopping areas across the Indian capital Saturday evening, killing at least 18 people and wounding at least 61 more, officials said. A Muslim militant group claimed responsibility for the bombings.

A number of Indian media outlets received an e-mail sent just before the blasts warning that India was about to receive "the Message of Death."

"In the name of Allah, Indian Mujahideen strikes back once more. ... Do whatever you can. Stop us if you can," said the message.