He said this in an interview with Dutch public television, Censor.NET reports citing UNIAN.
According to Westerbeke, no specific suspects have been established so far, though there are those of high interest to the investigation.
Speaking about the prospects, the prosecutor says the investigation team is working really hard, while hoping the new information could be published by the end of the year.
Westerbeke says it is possible to establish which Buk system - Russian or Ukrainian - hit the Boeing adding this very issue is being examined at the moment.
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