Hurte Sierd Zylstra and his wife , Jetsi Hendrika Coers , both 50 years old , were seized late on Saturday or early on Sunday from a teak tree plantation they manage by at least two heavily armed men who took the two off in their own car , leaving behind a ransom note demanding $ 1.5 million .
<response> <person>Hurte Sierd Zylstra</person> and his wife , <person>Jetsi Hendrika Coers</person> , both 50 years old , were seized late on Saturday or early on Sunday from a teak tree plantation they manage by at least two heavily armed men who took the two off in their own car , leaving behind a ransom note demanding $ 1.5 million . </response>