India police are scouring Mumbai for four Lashkar-e Tayyiba [LeT] terrorists, suspected of infiltrating the country to carry out attacks during the holidays, as India's financial capital remains on high alert. The alert is the second in four months and follows a devastating LeT attack on Mumbai in November 2008.

"We are getting information in bits and pieces," Deven Bharti, who heads the Mumbai police's crime branch, said in a telephone interview with the New York Times on Friday. "We are trying to work on it." They also released a picture of a suspect named Walid Jinnah, and set up checkpoints and an increased police presence throughout the city.

Roads were closed on Friday in and around the luxury Taj Mahal Palace hotel, one of the primary targets of the 2008 attacks, and armed police were patrolling at high-profile sites, including consulates.

"The four men are planning violent attacks that are going to cause destruction," said Joint police commissioner Himanshu Roy in a news conference in Mumbai on Thursday evening. "The four have recently arrived in Mumbai. We believe the threat is serious."