A man seen bloodied and limping as he was led away by police in handcuffs has been arrested on suspicion of killing 10 people, including a police officer, at a Colorado grocery store, marking America’s second fatal mass shooting in a week.

The gunman, who was not publicly identified, opened fire at a King Soopers outlet in Boulder, about 28 miles (45 km) northwest of Denver, in the late afternoon on Monday, sending panicky shoppers and employees scurrying for cover as hundreds of police officers converged on the area.

President Joe Biden made no mention of gun control in the aftermath of last week's shootings in Atlanta -- including during remarks after visiting the city -- but he will face more pressure now to voice an opinion on the matter after another mass killing in Colorado.

Biden is expected to be briefed again Tuesday morning on the deadly shooting, two White House officials said, and plans to comment on the shooting at some point later in the day. He was planning to travel to Ohio to promote the anniversary of the Affordable Care Act.

Ten people were killed, including a veteran police officer, during a mass shooting Monday inside a grocery store in Boulder, Colo., authorities said at a late news conference.

The officer was identified as Eric Talley, 51, who served on the force since 2010. He was the first officer at King Soopers, the crime scene, after the shooting occurred at about 2:30 p.m. His actions were called heroic.

Talley was the father of seven, his youngest seven years old, his father told the Denver Channel.

"He loved his kids and his family more than anything," his father said.