LIVE STREAM: Sandy Hook Shooting

NEWTOWN, Conn. — An emotional President Obama speaks to the nation following the deadly attack at an elementary school in Connecticut. At least 27 people are dead, most them children. The suspected gunman may have killed his brother and mother before heading to the school where his mother worked a kindergarten teacher. At least 4 guns were recovered from the school.

[UPDATE 1:56 P.M.] ABC News reports that investigators are looking into if Adam Lanza was carrying his older brother Ryan’s ID at the time of shooting, which caused initial mis-identification.

[UPDATE 1:34 P.M.] Initial reports identified Ryan Lanza as the gunman, but there now appears to be some confusion on the gunman’s identity. Sources tell ABC News that the gunman was 20-year-old Adam Lanza, not his brother, Ryan.

Connecticut State Police spokesman Paul Vance confirmed at a press update that 18 children pronounced dead at school, while 2 died at hospital; 6 adults confirmed dead at school. Shooting took place in “one section of the school in two rooms,” said Vance.

Oregon Senator Ron Wyden released a statement: “This shooting is a tragedy beyond words and becoming all too common. My family’s condolences go out to all of the families of the victims.”

President Obama ordered all flags to be flown at half-staff in wake of the tragedy. Earlier in the day, the President held a press conference offering his condolences and sympathies to the victims of the shooting. “Our hearts are broken today,” the President said, who was visibly emotional at the podium, seen wiping tears from his eyes while speaking.

[UPDATE 11:34 a.m.] Connecticut school shooting gunman is a man named Ryan Lanza of New Jersey; dead body also found in his home officials say. Lanza’s mother was found among the dead at Sandy Hook Elementary School.

[UPDATE 11:29AM] CNN has identified and confirmed with authorities that the shooting suspect is Ryan Lanza.

[UPDATE 10:48 a.m.] A press conference was held this morning with updated information on the shooting that occurred at an elementary school in Newtown, Connecticut.

Police said the gunman is deceased inside the school and police have secured the scene. Police report that there were fatalities of both students and staff, but exact numbers on how many are dead will not be released by authorities until “proper notifications have been made”.

It was also stated at the press conference that President Obama called the Governor of Connecticut to express his condolences.

[PREVIOUSLY] (CNN) — As many as 20 people are dead after this morning’s shooting at an elementary school in southwestern Connecticut.

A law enforcement source with knowledge of the investigation tells CNN at least 10 children are among the dead at Sandy Hook Elementary School.

The body of the suspected gunman was found in a classroom at the Newtown school, about 60 miles north of New York. It’s not clear whether that suspect was killed by police.

A parent who was inside the school at the time of the shooting says she heard what sounded like more than 100 rounds of gunfire. The first calls came into police at about 9:40 a.m.

The White House says President Barack Obama is now receiving regular updates on the shooting. White House spokesman Jay Carney says he and the president “feel enormous sympathy” for the families of the children at Sandy Hook Elementary.