Officers say they are not looking for anyone else following the deaths of a woman and child at Slough in Berkshire. But the deaths are still being treated as suspicious.
A dog sparked a dramatic rescue operation after plunging 30ft into the sea. An RNLI lifeboat was scrambled to save Patterdale Terrier Archie after he fell over the edge of a cliff at Walton Backwaters in Essex.
The dog's owner Maxine Rule, who was also walking her partner's dog Lexi, told the Colchester Gazette: "Both dogs ran across the field, Archie got to the edge, stopped and then just went over. Lexi didn't follow, but was looking for another way down.
"When I ran over, I could not believe the drop and thought he must be dead."
The inshore lifeboat from Harwich lifeboat station was on its way back from a fundraising event when it was contacted by Thames Coastguard during the incident earlier this month, an RNLI spokesman said.
Crewman Darren Priestnall plucked six-year-old Archie from the water and waded back to the shore to reunite him with his owner.
Police say the child was aged under 10 years. A passenger who said he was on board the 08.41 train from Bedwyn to Paddington said the driver apologised to everyone on board after his train struck the pair.
British Transport Police say a possible murder-suicide is:
Police have been searching the train tracks and studying CCTV at Slough, as well as speaking to a large number of witnesses, both on the train and on the platform.
- Police say they are not looking for anyone else following the deaths of a woman and child at Slough
- British Transport Police has ruled out the involvement of a third party but says the deaths in are still being treated as suspicious