A 38-year-old man has been arrested on suspicion of the murder of Sabina Nessa, the Metropolitan police said.

The 28-year-old primary school teacher is suspected to have been killed as she walked through Cator Park in south-east London, on what should have been a five-minute journey to a pub from her nearby home, at about 8.30pm last Friday.

Detectives have also released images of a man they want to speak to and a vehicle they are searching for.

The images of the man, taken from CCTV, shows him walking in Pegler Square SE3 on the evening Nessa was attacked.

Police have also released an image of a silver vehicle they believe the man has access to, which was also captured in the Pegler Square area.

Police are urging anyone who recognises the man and vehicle to make contact immediately.

DCI Neil John, from the Met’s specialist crime command, said: “Our team have been working tirelessly to find the person responsible for Sabina’s murder and this has included an extensive trawl of CCTV, work which remains ongoing.

“We would ask anyone – especially those in Kidbrooke and the wider area of Lewisham and Greenwich – to take a careful look at these images to check whether you know who this man is or have seen him over recent days.

“Any information as to his identity or whereabouts could be vital for our investigation so we are asking you to share this image far and wide to ensure as many people as possible see it.”

This afternoon officers also made a second arrest in relation to Nessa’s murder.

A man aged 38 was arrested at an address in Lewisham on suspicion of murder. He was taken into custody where he remains.

A man in his 40s who was previously arrested on suspicion of murder has been released under further investigation.