Hundreds of foreign companies are actively procuring components for India and Pakistan’s nuclear programs, taking advantage of gaps in the global regulation of the industry, according to a report by a U.S.-based research group.

Using open-source data, the nonprofit Centre For Advance Defense Studies (C4ADS) report provides one of the most comprehensive overviews of networks supplying the rivals, in a region regarded as one of the world’s most dangerous nuclear flashpoints.

"India and Pakistan are taking advantage of gaps in global nonproliferation regimes and export controls to get what they need,” said Jack Margolin, a C4ADS analyst and co-author of the report.