Kenya shopping centre attack

Key Points

• A gun battle inside a shopping centre in the Kenyan capital Nairobi has left at least 39 people dead and 150 others injured
• An operation to secure the Westgate centre - one of the city's most exclusive shopping malls - is ongoing
• Somali militant group al-Shabab has claimed responsibility for the attack
• Kenyan President Uhuru Kenyatta says he has lost some family members in the attack
• All times GMT