Amazon has extended its express Prime Now delivery service to new postcodes in North London and Hertfordshire.

Prime customers in St Albans can now pay £6.99 for one-hour delivery on a range of 15,000 projects including nappies, coffee and fresh milk.

And customers in Edgware, Enfield and Watford can now access two-hour same day delivery slots between 8am and midnight.

Amazon has been expanding its Prime Now offering since its launch in London last June.

According to the company, the most popular purchases so far this year include bottled water, milk, baby wipes and Pepsi Max.