Officers from the Metropolitan Police Service's Operation Elveden have arrested a man in southwest London this morning.
Operation Elveden is the investigation into allegations of inappropriate payments to police and public officials.
It is being supervised by the Independent Police Complaints Commission and is running in conjunction with Operation Weeting, the MPS inquiry into the phone-hacking of voicemail boxes.
The 43-year-old male journalist, was arrested at around 9am after attending a southwest London police station by appointment. He was arrested on suspicion of conspiracy to corrupt and suspicion of conspiracy to cause misconduct in a public office, both contrary to the Criminal Law Act 1977.
Police investigating two serious attacks on women in Hounslow have arrested a man in connection with their investigation.
Following police appeals, including issuing a CCTV image of a suspect, an officer on a high-visibility patrol at Hounslow train station recognised the man at around 10pm on Tuesday night.The constable, who only recently took up her post with the Metropolitan Police, decided to make an arrest.
The man, aged 20, was taken into custody at a west London police station, where he remains.
Man charged following 'Olympic closing ceremony fraud' arrests
Detectives from Operation Podium have charged a man with fraud offences involving the Olympic Games.
The investigation began after dance schools in Northamptonshire received offers for their pupils to participate in the closing ceremony of the Olympic Games.
Olympic organisers LOCOG alerted the police to what were suspected as being fraudulent offers. Officers have now arrested 35 year-old Steve Moonesamy, from Northampton. A 31 year-old woman has also been arrested and taken to an east London police station where she was bailed.
Three charged after Counter Terrorism Command arrests
On May 1st detectives from the Counter Terrorism Command arrested seven people on suspicion of terrorist financing offences.
This includes a 45 year-old woman and 49 year-old man, both from Croydon. The man has now been released from Terrorism Act detention and has been charged with criminal offences. The woman is still being detained under the Terrorism Act 2000.
Met police inspector arrested over racial abuse claims
A Metropolitan Police inspector has been arrested on suspicion of racial abuse.
The officer, based in north London, is being investigated by the force's Directorate of Professional Standards (DPS) and the Independent Police Complaints Commission (IPCC) after an incident in Barnet.
The Met said the officer, who was off-duty at the time of the alleged incident at 7.40am on Monday, was arrested and suspended while the incident is investigated.
"He is at present on police bail and has been suspended from duties pending the outcome of the criminal investigation, " a Met spokesperson said.
The IPCC confirmed it's supervising the investigation - the latest allegation of racism by Met officers under investigation by Scotland Yard and the IPCC.
Second arrest in Gemma McCluskie murder investigation
A second man's been arrested in connection with the murder of former EastEnders actress Gemma McCluskie. Detectives investigating the killing arrested a 35-year-old man on Friday on suspicion of being concerned in the murder. He's been released on bail pending further inquiries until a date.