The White House said Obama wanted to get an update on Bulgaria’s investigation into a deadly attack carried out against an Israeli tourist bus in the Black Sea city of Burgas, located some 400 kilometers (248 miles) east of the Bulgarian capital Sofia, on July 18.
Israeli officials said the attack was conducted as Israeli tourists from a Tel Aviv-Burgas flight were boarding the bus to go to their hotels.
Bulgaria is a popular tourist destination for Israelis.
US President Barack Obama is set to meet with Bulgarian Prime Minister Boyko Borisov to discuss Sofia’s role in the US-led operations in Afghanistan.
The meeting is scheduled to be held at the White House later on Monday, with Borisov being the first European leader to visit Obama after he was reelected on November 6.
The White House said the two would discuss a number of issues including the role of Bulgaria in NATO and its contribution to the US-led operations in Afghanistan.
The two are also expected to discuss the situation in the Balkans and the Middle East.