[Updated] Latest on Hunt for Marathon Bombing Suspects

Reporting from Patch Boston-area staff provided by Chris Caesar, John Waller, Daniel DeMaina, Franklin Tucker, Ryan Grannan-Doll, and Liz Taurasi.

Multiple communities in the Boston area are in complete lockdown Friday morning as an all-night manhunt continues for the second suspect in the Boston Marathon bombing.

Businesses, schools, and mass transit are shut down completely, and police are asking all residents of the affected areas to stay indoors. Many of the Boston area colleges, including Boston University, MIT, Northeastern, Harvard, Emerson, Lesley, Suffolk, Bentley and Boston College are closed today.

According to Watertown Patch, officials confirmed early Friday morning that they are searching for the second Boston Marathon bombing suspect in Watertown following a chaotic night that left the first suspect dead. 

The Associated Press is reporting the surviving Boston bomb suspect is identified as Dzhokhar A. Tsarnaev, 19, of Cambridge. "We believe this man to be a terrorist," Boston Police Commissioner Ed Davis said at a post-4 a.m. press conference about the at large suspect. 

"We believe this to be a man who's come here to kill people. We need to get him in custody." 

All MBTA service has been suspended on Friday morning and law enforcement officials are asking residents of Watertown, Newton, Waltham, Belmont, Cambridge and the Allston-Brighton neighborhoods of Boston to stay indoors and for businesses to not open today. Also, no vehicle traffic will be allowed in or out of Watertown until further notice. 

The suspect is considered armed and dangerous. 

A robbery at a Cambridge 7-11 Thursday night was followed by the fatal shooting of a MIT campus police officer, then a carjacking by the suspects, which turned into a shootout in Watertown on early Friday morning, with one suspect pronounced dead at a hospital after the shootout and the other at large.

For the most updated coverage, follow Watertown Patch which continues to update this story as it develops.

Are you in touch with family and friends in the affected areas? Tell us what they are hearing in the comments.