THE HAGUE, September 02. /ITAR-TASS/. A preliminary report on the cause of the crash of Malaysia Airlines flight MH17 over the embattled eastern Ukraine is almost ready, Dutch Safety Board spokesperson Sara Vernooij told ITAR-TASS on Tuesday.

The report will be ready either at the end of the week or early next week, she said. Vernooij said the preliminary report will shed certain light on the cause of the tragedy, but many questions still remain unanswered. In order to answer them, a more thorough investigation was needed and its results would be published next spring according to the board’s preliminary estimates, she said.

Vernooji said all investigators were currently working in The Hague. The Dutch Safety Board was planning to send experts to the crash site when it would be safe enough in the area, she added.