France has increased security at sensitive sites across Paris after a foiled bomb attack on Bank of America's offices that prompted some other U.S. banks in France and Germany to allow their staff to work remotely on Thursday (April 2).

Citing an elevated "terrorist threat," Paris police said they had reinforced protection around religious and cultural sites, diplomatic premises and some economic venues, as well as across the wider metropolitan region.

Four suspects, including three teenagers and an adult, have been placed under formal investigation for their alleged role in last week's attempted attack, French anti-terrorism prosecutors said on Wednesday (April 1).

The adult is suspected of recruiting the teens and paying them between 500 and 1,000 euros ($580-$1,160) to plant and film themselves placing the bomb. All four, who are in pre-trial detention, deny terrorist intent.

Their improvised explosive device, a five-litre petrol can taped to a large pyrotechnic charge, was the most powerful of its kind identified in France to date, prosecutors said.

DESCRIPCIÓN DE IMÁGENES

1. EIFFEL TOWER, SEEN FROM BEHIND POLICE CAR

2. BLUE LIGHTS ON POLICE CAR

3. POLICE CAR PARKED BY BARRIERS AT FOOT OF EIFFEL TOWER

4. PEOPLE GATHERED BY OLYMPIC RINGS

5. TEXT ON CAR READING (French): “NATIONAL POLICE”

6. PEOPLE LOOKING AT PHONE

7. OLYMPIC RINGS BY EIFFEL TOWER

8. BELL TOWERS OF NOTRE DAME CATHEDRAL

9. PEOPLE STANDING IN FRONT OF CATHEDRAL

10. SCULPTURES ON FACADE

11. PEOPLE IN FRONT OF CATHEDRAL

12. SPIRE OF CATHEDRAL

13. PEOPLE IN FRONT OF CATHEDRAL

14. POLICE VAN PARKED BY GRAND SYNAGOGUE

15. VARIOUS OF EXTERIOR OF GRAND SYNAGOGUE

16. SIGN WITH NAME OF SYNAGOGUE (French): "SYNAGOGUE DE LA VICTOIRE XIXe)

17. PEOPLE WALKING IN STREET

18. SECURITY CAMERA ON FACADE OF SYNAGOGUE

PARIS, FRANCE (APRIL 2, 2026) (REUTERS - Access all) (MUTE)

19. CITYSCAPE WITH EIFFEL TOWER

20. NOTRE DAME CATHEDRAL

21. ARC DE TRIOMPHE

22. SACRE COEUR BASILICA

23. CITYSCAPE WITH EIFFEL TOWER