A line chart illustrates the increasing rate of attacks with a red line. One peak of 9 incidents in December 2019 is highlighted with an arrow and caption reading, “IMB issues the first warning for the strait.” The tallest peak of 21 is highlighted in June of 2025. July through October of 2025 is highlighted with a bracket that is captioned, “23 arrests made.”

0

4

8

12

16

20

2

6

10

14

18

2020

2021

2022

2023

2024

2025

2026

2019

IMB issues the first warning for the strait.

23 arrests made.

9

21

Dec 2019

Jun 2025

Reported attacks by month

Jul - Oct 2025

Source: IMO, IMB, ReCAAP

A line chart illustrates the increasing rate of attacks with a red line. One peak of 9 incidents in December 2019 is highlighted with an arrow and caption reading, “IMB issues the first warning for the strait.” The tallest peak of 21 is highlighted in June of 2025. July through October of 2025 is highlighted with a bracket that is captioned, “23 arrests made.”

0

4

8

12

16

20

2021

2023

2025

2019

IMB issues the first warning for the strait.

23 arrests made.

9

21

Reported attacks by month

Source: IMO, IMB, ReCAAP