Vice President Biden plans to be among the mourners at the funeral for a New York City policemen gunned down last weekend.

The White House says President Obama has asked Biden to attend Saturday's service for Rafael Ramos at Christ Tabernacle Church in Glendale, New York. Biden's wife will also attend.

Ramos and his partner, Wenjian Liu, were ambushed Saturday. The gunman claimed he was retaliating for the police-involved deaths of Eric Garner in New York and Michael Brown in Ferguson, Missouri. He later shot himself.

New York's police commissioner says Liu's family plans to make arrangements after arriving from China.

Obama is on vacation in Hawaii.