More than 800,000 people each year worldwide commit suicide — around one person every 40 seconds — with many using poisoning, hanging or shooting to end their own lives, the World Health Organization said on Thursday.

In its first global report on suicide prevention, the United Nations health agency said some 75 percent of suicides are among people from poor or middle-income countries and called for more to be done to reduce access to common means of suicide.

The report found that suicides take place all over the world and at almost any age. Globally, suicide rates are highest in people aged 70 and over, but in some countries, the highest rates are found among the young.