Attackers wielding machetes have killed a village doctor and wounded his friend, a university tutor, in western Bangladesh, police say.
Mir Sanwar Rahman, known for offering villagers free homeopathic medicines, was hacked to death early on Friday in Kushtia district.
No group has said they carried out the attack.
There has been a spate of murders of religious minorities, secular activists and academics in Bangladesh recently.
Mr Rahman and tutor Mohammad Saifuzzaman were ambushed as they travelled on a motorbike in their village.
More than 20 people have been killed in attacks by suspected Islamists in the last three years.
An elderly Buddhist monk was hacked to death on Saturday while a Hindu priest, two prominent gay activists, a law student and a university professor were also murdered in recent months.
The killings have been blamed on various hardline groups, including so-called Islamic State (IS) and Ansar al-Islam, a Bangladeshi militant group affiliated to al-Qaeda.
The government has denied that IS is present in the country. Instead, it has blamed opposition parties and local Islamist groups, such as Ansarullah Bangla Team and Harkatul Jihad.
The opposition have denied any involvement and say the government’s accusations against them have hampered a credible investigation.
All those killed were nonconformers. They were not strict followers of Sunni Islam. The latest victim, Mir Sanwar Rahman was a follower of Lalon’s philosophy.