The killings of two black men in the US state of Louisiana last week were probably racially motivated, police said, and a 23-year-old white man is in custody.

Sergeant L'Jean McKneely said the shooting happened on Tuesday night while the two children were alone in a car parked at a shopping centre.

WEST Side Story is a cornerstone of musical theatre. It is enduring: it opened on Broadway in 1957 and plays at the Bord Gáis Energy Theatre this week.