Puigdemont had fled from Spain after he backed Catalan independence in a resolution passed by the regional government.
The train, with over 360 people on board, was travelling from the Edirne region on the Greek and Bulgarian borders to Istanbul's Halkali station when six of its carriages derailed in the Tekirdag region.
Dawn Sturgess, 44, and her partner Charlie Rowley were found unconscious last week, a few kilometres from the scene of a nerve agent attack on a former Russian spy and his daughter in March
Major incident declared as two people are suspected to have been exposed to an unknown substance in Amesbury by police.
Interim prime minister Nasir-ul-Mulk had last month reviewed measures to meet requirements of the global watchdog
In Jordan, Prince William was welcomed on Sunday by 23-year-old Crown Prince Hussein, a member of the Hashemite dynasty Britain helped install in then-Transjordan a century ago.
PM Modi's Lingayat outreach in London
Spain: Catalonia polling booths sealed