A 46-year-old Greek woman accused of involvement in the deadly 2010 arson attack on a Marfin bank branch in central Athens has been arrested in Great Britain, Greek police sources said on Monday.

Greek authorities activated an Interpol Red Notice on Saturday, leading to the woman’s arrest in the United Kingdom, where she has been living for several years, according to the sources.

Extradition proceedings to Greece are expected to begin in the coming days.

The woman’s lawyer said her client denied the allegations and, after being informed of the charges, contacted Greece’s Homicide Squad to say she intended to return voluntarily to Greece to provide testimony.

According to state broadcaster ERT, the woman had already bought a flight ticket to return to Greece.

The investigation concerns the May 5, 2010 firebomb attack on a Marfin bank branch in Athens, in which three employees died after the building was set ablaze during anti-austerity protests.

Two 42-year-old men have already been arrested in connection with the case and are due to appear before an investigating magistrate on Monday to respond to the charges.

The woman arrested in UK was allegedly holding the backpack with the Molotov cocktail bombs, ERT reported,

Last week the government claimed that hints for the identification of at least three suspects for the arson of Marfin bank were delivered to authorities via an anonymous e-mail. over the weekend, the narritve changed and claimed that the hints were on a USB stick left in a park in Athens.