A 29-year-old suspect was taken into custody in Philadelphia overnight, accused of stabbing six family members while they slept, according to a report.

The victims were between ages 26 and 46, with the eldest being a mother who suffered slashes to her neck and was in critical condition, reporter Steve Keeley of FOX 29 in Philadelphia posted on Twitter.

The medical conditions of the other victims, and their relation to the suspect, were not immediately known.

The suspect allegedly entered victims' bedrooms and stabbed them with two different kitchen knives, police told FOX 29.

3000 block of N Front St. in Philadelphia (Google Maps)

3000 block of N Front St. in Philadelphia (Google Maps)

The incident happened about 4:15 a.m. Friday in the city’s Kensington neighborhood, KYW-TV of Philadelphia reported.

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Police found the suspect walking about three blocks away, covered in blood, Keeley reported.

3000 block of N Front St. in Philadelphia (Google Maps)

3000 block of N Front St. in Philadelphia (Google Maps)

A motive for the attack was not immediately known as of Friday morning, according to the outlet.

An investigation into the alleged attacks is ongoing.