The launch will see the retailer use Ocado's recently opened distribution centre in Warwickshire for deliveries through a Morrisons-liveried fleet.
The 25-year deal involves Morrisons paying up to £170 million to Ocado to acquire the site and equipment.
This agreement is a significant strategic step for Morrisons.
From a standing start, Morrisons will be competing in the fast-growing online channel by the end of this year with a really compelling proposition.
The customer gets our affordable fresh food delivered by Ocado's state-of-the-art distribution system.
More top news
The remarkable rescue of baby elephant Roi, who faced starvation after poachers killed its mother, was captured on film.
The judgment means obese workers in the UK could claim they are technically disabled and entitle them to benefits or to seek compensation.
As forensics examine the evidence in the school were 148 people, mainly children, where killed, students prepare to return to the classroom.