Peter Murrell, husband of former Scottish first minister Nicola Sturgeon has been arrested in an investigation into the finances of the Scottish National Party (SNP).
The 58-year-old was taken into custody on Wednesday morning and is being questioned by Police Scotland detectives.
Searches are also being carried out at a number of addresses, inlcuding the couple's home and SNP headquarters.
Murrell has since been released without charge, pending further investigation.

The Department for Transport has announced that the £2 bus fare cap has been extended until the end of June.
£75 million has been set aside to provide discounted bus travel for another three months across more than 5,000 routes.
The scheme is being promoted with the tagline 'Hop Around for £2'.
The programme began in January and has seen an increase in passenger numbers. The extension is expected to take 4 million cars of the road.

The Welsh Government has announced that free school meal provision will continue to be available to children from lower income families for the Easter and Whitsun school holidays.
The funding for this comes for an agreement between the Welsh Government and Plaid Cymru.
Individual local authorities will decide how to administer the provision either by creating lunches or providing vouchers or direct payments.
Funding will be provided until the end of May half term holiday, including all bank holidays during this period.

The government has announced that public organisations will be able to apply for a portrait of the King. The portraits will be fully funded by the government as part of a scheme to celebrate the new reign.
Those eligible include councils, courts, schools, police forces and fire and rescue services.

The Scottish Government has announced a new deal for local government, which it says has reaffirmed the Scottish Government’s commitment to resetting the relationship with local authorities.
Dirst minister Humza Yousaf met with COSLA (Convention of Scottish Local Authorities) President Shona Morrison and the newly appointed minister for local government empowerment and planning, Joe FitzPatrick.
The new deal will be jointly agreed with COSLA and intends to provide greater flexibility over local funding and clear accountability for delivering shared priorities.