The work at Sawbridgeworth, Cheshunt and Broxbourne stations is happening on Saturday and Sunday.
Muriel McKay's family search a garden in east London for the first time, as they look for her body.
A 65-year-old woman is assisting police with inquiries following the collision, officers said.
A judge describes Ahmadreza Khalafi, who arrived in the UK in a lorry in 2024, as a "predator".
Daisy Adamson says she had to fight back tears when 14-year-old Sugar Rush was crowned the winner.
The crash which killed Peter Beeson, 66, is being investigated by the air accident officials.
A former teacher, who created abusive images while working at a boarding school, is sentenced.
Daisy Adamson says the nomination means "everything because I practically live my life for Marley".
Officers say the 66-year-old was the only person onboard the light aircraft.
