Police are seeking a man accused of attempted murder, who they say has a knife and “is known to have access to firearms.”

The man allegedly stabbed a 30-year-old man in a downtown Toronto home on Friday, causing serious injuries, police said in a news release Saturday.

Police said the incident started with an argument between the two and the wanted man fled before officers arrived.

Elijah Roberts, 28, was originally wanted on charges including aggravated assault, but police later upgraded the charges to attempted murder. He also faces another charge of uttering threats.

Roberts is described as white, five-foot-nine, 177 pounds, dark-haired and bearded, and has tattoos on both arms. Police said he has recent bruising to his face and may be wearing a bandage on his head.

Police said Roberts is considered armed and dangerous and asked members of the public to call 911 and not approach him if sighted.