It is true that representatives of the US Federal Bureau of Investigation (FBI) were involved in the investigation into the murder of the three Bytyqi brothers, as well as in a questioning of a witness in one northern country, but nothing came out of it, a former prosecutor, Vladimir Vukcevic told Belgrade based daily Danas.

One of the most active and “hardcore” Albanian activists in Washington, US Congressman Eliot Engel - as described by the Tanjug news agency - is set to visit Belgrade on Wednesday, the agency said it has learnt.

According to Tanjug Congressman Engel would meet Serbian President Aleksandar Vucic.

The two of them have already met in February this year during the 55^th Munich Security Conference when Vucic met with the US Congress Delegation, and Congressman Engel was part of it. Bytyqi brothers case was in the focus of that meeting.

Serbian President Aleksandar Vucic said on Tuesday that the US Congress delegation he has met with at Munich Security Conference did not provide any evidence against a former high-ranking police officer who is alleged to have been involved in the killing of Bytyqi brothers, who were US citizens, TV N1 reports.