Attacks in West Africa pushed piracy up in 2018, the International Maritime Bureau said in its annual report released this week.

There were 201 incidents reported to the agency last year, including six hijackings — all of which happened in the Gulf of Guinea — and 143 ships boarded, up from 180 total in 2017 and 191 in 2016.

“There is an urgent need for increased cooperation and sharing of intelligence between the Gulf of Guinea’s littoral states so that effective action can be taken against pirates, both at sea and on-shore where their operations originate and end,” a statement from the IMB read.