The following is taken from the contemporary diary of the Swiss internist and cardiologist Robert Hegglin, who took part in a humanitarian mission of the Swiss Red Cross in Riga, Daugavpils and Pskov in June - September 1942 and learnt from "German soldiers, officers and Latvians...that 100,000 Jews have been shot in the Riga area since the German occupation".
"Es soll auch vorgekommen sein, dass die Erschiessungen nicht korrekt durchgeführt wurden. So erzählt der Lette von zwei Mädchen, die abends aus dem Grab gestiegen seien, da sie nur leicht verletzt waren, und die in einem benachbarten Bauernhof Zuflucht suchten. Noch schaurigere Berichte habe ich von Dünaburg gehört. Man erzählt dort, dass es im Massengrab noch gebrüllt habe, als man begann, das Grab zuzudecken. Wie es sich mit der Ausschmückung dieser Erschiessungen verhält, weiss ich nicht. Absolute Tatsache aber dürfte sein, dass hier in Lettland Tausende von Juden von Letten (unter deutschem Befehl) erschossen worden sind."
"Dass es gegenüber diesen Massnahmen unsererseits nur schärfste Ablehnung geben kann, dürfte zweifellos sein. Die Deutschen machen es einem moralisch denkenden Menschen schwer, sich für sie einzusetzen. Haben sie diese blutigen Schandtaten tatsächlich notwendig? Dann sind sie auch nicht berufen, die Herren Europas zu werden."
"There is still a question to be touched and discussed, which is extremely painful, but cannot miss in an objective report: the Jewish question. According to the reports from German soldiers, officers and Latvians, there can be no doubt that 100,000 Jews have been shot in the Riga area since the German occupation. The figures vary between 40,000 and 90,000. Shootings of Jews took also place at all other larger places in Latvia, not only shootings of local Jews were carried out, but apparently mainly Jews from the Reich are brought and shot there."
"According to a report of a Latvian doctor, whose friend is a member of the Latvian police, who was himself actively involved in the shootings, Latvians are forced into the Latvian police force. After the usual declarations of dutifulness, they are prompted to take part in the shootings. If they refuse to do so, they are killed themselves because they are unreliable. 1000 executions are supposed to have been carried out on one day. The Jews apparently have to shovel their own mass grave, are ordered to undress naked, it is well organized that rings and clothes have to be give off at different places - this Latvian told. Then the shootings are done with machine guns or shooting in the neck. Men, women and children are shot in the same way.""It also happened that the shootings were not carried out properly. The Latvian reports of two girls, who climbed out of the grave as they were only slightly injured and seeked for shelter in a neighboring farm. I have heard even more horrible reports from Daugavpils. They told about a roar from the mass grave when they started to cover the grave. I don't know how decorated such shootings are. But it can be considered as an absolute fact that thousands of Jews have been shot by Latvians (under German command).""There can be no doubt that we can only strongly condemn such actions. The Germans make it difficult for a morally thinking person to speak up for them. Do they really need such bloody crimes? Then they are not destined to get the masters of Europe."