(VOVworld) – IS supporters from Indonesia are joining forces with their counterparts in the Philippines, raising concerns about cross-border violence, Indonesian anti-terrorism officials said Tuesday.

IS supporters from Indonesia are joining forces with their counterparts in the Philippines, raising concerns about cross-border violence (Source: Straits Times)

South east Asian authorities were on heightened alert after a gun and bomb attack rocked the Indonesian capital Jakarta in January. The attack marked an IS presence in the region for the first time.