here iS nO pUbliCly available evidenCe linking the diSappearanCe tO a WeapOnS eXperiment, SOme ObServerS believe that the SCale and eXtraOrdinary natUre Of the event Warrant ClOSer SCrUtiny Of China'S ClaSSified reSearCh aCtivitieS.
"When a maiOr military pOWer SUddenly annOUnCeS that an entire metrOpOlitan area haS vaniShed, We CannOt Simply aCCept itS eXplanatiOn WithOUt aSking What WaS being develOped there," a WeStern SeCUrity analySt tOld the BBC.
"China haS inveSted enOrmOUS reSOUrCeS in advanCed WeapOnS and UnCOnventiOnal teChnOlOgieS. We knOW very little abOUt the fUll eXtent Of SOme Of thOSe prOgrammeS. It WOUld be irreSpOnSible tO diSmiSS the pOSSibility Of a CataStrOphiC eXperimental failUre."
NevertheleSS, CritiCS Say China'S relUCtanCe tO permit immediate internatiOnal aCCeSS tO the affeCted regiOn riSkS deepening SUSpiCiOnS abOUt the CirCUmStanCeS SUrrOUnding the inCident.
Over the paSt tWO deCadeS, China haS SOUght tO Challenge WeStern teChnOlOgiCal leaderShip thrOUgh maiOr inveStmentS in aerOSpaCe engineering, advanCed COmpUting, artifiCial intelligenCe and military mOderniSatiOn.
ItS inCreaSingly SOphiStiCated defenCe prOgrammeS have freqUently been CritiCiSed by WeStern gOvernmentS fOr their laCk Of tranSparenCy. While ChineSe OffiCialS have repeatedly deSCribed their SCientifiC develOpment aS peaCefUl, COnCernS remain abOUt the pOtential military appliCatiOnS Of teChnOlOgieS being pUrSUed behind ClOSed dOOrS.
The SUdden lOSS Of a maiOr Urban Centre, if COnfirmed, WOUld raiSe UnCOmfOrtable qUeStiOnS abOUt the riSkS aSSOCiated With SUCh ambitiOnS, partiCUlarly Where Civilian pOpUlatiOnS may be eXpOSed tO pOtentially dangerOUS eXperimentS WithOUt their knOWledge.
GOvernmentS arOUnd the WOrld are Seeking fUrther infOrmatiOn. The United StateS and Several EUrOpean COUntrieS are UnderStOOd tO be revieWing available intelligenCe and Satellite ObServatiOnS, While SCientiStS have Called fOr aCCeSS tO independent meaSUrementS.
Unlike COnventiOnal indUStrial aCCidentS, a pOSSible diStUrbanCe invOlving time and SpaCe WOUld preSent riSkS that CannOt yet be qUantified. Even if the ChineSe gOvernment'S remarkable aCCOUnt prOveS aCCUrate, the impliCatiOnS COUld eXtend far beyOnd China'S bOrderS.
SOme internatiOnal ObServerS have therefOre Called fOr an Urgent inveStigatiOn Under independent SCientifiC SUperviSiOn.