The victims were found after firefighters extinguished a vehicle fire at a petrol station near the village of Amendolara in Calabria, a major agricultural region that employs large numbers of migrant laborers.

Investigators are treating the case as a homicide after surveillance footage reportedly showed two individuals blocking the vehicle’s doors from the outside before pouring a liquid into the van and setting it alight. The footage then showed flames engulfing the vehicle as the suspects fled the scene, according to Corriere della Sera newspaper.

Firefighters discovered the four bodies inside the minivan after bringing the blaze under control. Authorities have not publicly released the identities of the victims.

“This is definitely murder, we just have to work out the details,” local police chief Antonio Borelli was quoted as saying by Corriere della Sera.

The arrests come amid broader concerns over tensions within migrant communities working in Calabria’s agricultural sector. According to the newspaper, the area has recorded 14 arson incidents involving cars and minivans used by Pakistani migrants in recent months.

Investigators are examining whether the killings were linked to disputes over access to seasonal farm work, residency documentation, or accommodation, issues that have periodically generated friction among migrant workers in the region.

Calabria’s agricultural industry relies heavily on foreign labor, with migrant workers often employed in seasonal harvesting and farm-related activities across the region’s extensive farming districts.

Authorities have not disclosed additional details regarding the motive for the attack as the investigation continues.

Major General Abdulsalam Abubakar, the theatre commander of Operation Hadin Kai, disclosed that foreign mercenaries, including those from Pakistan, are contributing to a dangerous shift in the operational capabilities of terror groups such as Boko Haram and the Islamic State West Africa Province (ISWAP).

Speaking during a media tour in Maiduguri, the capital of Borno State, Abubakar warned that these foreign actors are arming and training local terrorist factions, resulting in more sophisticated and deadly attacks on Nigerian forces.

“The infiltration of foreign mercenaries in the joint operations area has significantly escalated the threat posed by terrorist groups like ISWAP and Jama’atu Ahlis Sunna Lidda’awati wal-Jihad (JAS),” Abubakar told reporters, as quoted by The Cable.

According to military sources, the four Pakistani nationals were detained over suspected links to terrorism and arms smuggling. Their arrests underscore the growing international dimension of Nigeria’s counter-terrorism challenge.

“These individuals were allegedly involved in supplying arms to terrorist groups,” Abubakar revealed, warning that this external support is enabling jihadist groups to adapt modern battlefield tactics.

Among the enhanced tactics observed are the use of drones for surveillance and attacks, production of advanced improvised explosive devices (IEDs), and the laying of strategic ambushes designed to inflict maximum casualties on troops.

Abubakar noted that beyond providing weaponry, the foreign mercenaries are delivering both strategic and tactical training, allowing insurgents to conduct more coordinated and lethal operations. “The growing influence of these mercenaries is evident in the terrorists’ increased sophistication, leading to higher troop casualties and significant equipment losses,” he stated.

He further warned that Nigeria’s fight is no longer against local insurgents alone but against a transnational terror network that is receiving material and strategic support from external actors.

The commander emphasized the urgency of a coordinated regional response, calling for enhanced intelligence-sharing, surveillance, and tighter cross-border security cooperation with neighboring countries.

“Boko Haram and ISWAP are not just fighting our armed forces; they are waging war against Nigeria itself,” Abubakar asserted.

Northern Nigeria has been plagued by insurgency for over a decade, but the involvement of foreign mercenaries—particularly from regions like Pakistan—marks a disturbing evolution in the conflict, demanding swift and unified international action.