A day after claiming its first attack in Tajikistan, the Islamic State released a video on Tuesday that purports to show the five attackers joining hands and pledging allegiance to Abu Bakr al-Baghdadi, the terrorist group’s leader.

The video was released by the Islamic State’s internal news agency and suggests that the attackers had at least a digital connection to the Islamic State, allowing them to send the footage to the group before last weekend’s attack on several cyclists who were run over and attacked on a mountain road in Tajikistan.

The Islamic State, also known as ISIS, releases a pledge video for only a minority of the attacks it claims. In the past, the existence of the video has provided the first concrete clue of an online connection between the assailants and the terrorist group’s central organization. The fact that the attackers managed to get the footage to ISIS points to an avenue for contacting the group, analysts say.

“It shows that these individuals are more than just inspired,” said Seamus Hughes, the deputy director of George Washington University’s Program on Extremism. “They are not necessarily directed by ISIS, but they are clearly more than inspired.”