Khloe Kardashian visits sister Kim in hospital

Los Angeles: Reality TV star Khloe Kardashian has visited her sister Kim Kardashian West in hospital following the birth of her second child, a boy.

Kim welcomed her son on December 5 and her younger sister was on hand to visit the newborn whilst also tending to estranged husband Lamar Odom.

She wrote on Twitter: "I know these hospital halls way too well. Hopping from one room to another."

Kourtney Kardashian also alluded to the birth on social media, tweeting, "Baby's breath," alongside emoticons of a blue heart and a pair of praying hands.

The birth of Kim and Kanye West's son was announced on the 35-year-old television personality's website.

A statement published on the site read: "Kim Kardashian West and her husband, Kanye West, welcomed the arrival of their son this morning. Mother and son are doing well."

Kim also has daughter North, two, with husband Kanye.