A man in California has opened fire on his stepdaughter and her family in a restaurant.
He killed her husband and six-year-old son, before killing himself. The stepdaughter and another child are in a critical condition.
Police in the city of San Bernardino said the man arrived at the restaurant on a bicycle, walked to a table and fired from two guns.
Police named the attacker as Jimmy Schlager.
The names of the victims have not been released.
"There was a very brief exchange of words, then he opened fire at near point-blank range," Police Lt Jarrod Burguan said.
No motive for the shooting has been established. The stepdaughter's mother died several years ago.
Police said that between five and seven employees and several other customers were in the fast food restaurant at the time of the shooting. No-one else was injured.
Owners of nearby businesses said horrified patrons streamed out of the restaurant after the shots were fired.
"This is just a terrible tragedy," said Lt Burguan.
"A whole family? In my 18 years here I don't recall anyone ever coming and walking in a public place like a restaurant and shooting like this. We haven't had anything like this in a long, long time."
San Bernardino is a city of about 200,000 people some 100km (60 miles) east of Los Angeles.