Argentina's government formally filed a criminal complaint on Tuesday against Israeli oil company Navitas Petroleum and four other firms over hydrocarbon exploration in waters near the Falklands, with the company yet to respond to the accusation and amid a slide in the share prices of those involved.

BUENOS AIRES, Sept 6 — Argentina has announced that it will investigate and sanction oil companies working near the Falkland Islands without authorisation, after President…

Argentina has opened Falklands oil sanctions against 45 companies and executives, and its main business group has publicly backed the government's claim.