Israeli security agents are putting pressure on some Palestinian medical patients to become informants, according to a human rights group.

Physicians for Human Rights says it has documented about 30 cases of people from Gaza being denied treatment for not providing information.

The Tel Aviv-based group says this breaches international law.

An Israeli official dismissed the claims, saying patients were only questioned as a security measure.

The report says that Palestinian patients have "become an accessible and important target for the GSS [General Security Services] for the purposes of recruiting and gathering information".

The group cites cases in which patients were summoned for questioning and others where patients did not come to a crossing for fear of being arrested.