GAZA CITY (Ma’an) -- The Ministry of Interior in the Gaza Strip reiterated its denial Monday that security forces were arresting Palestinians on a political basis, mostly Fatah members.

The ministry said Fatah should submit a list of names of people claiming to be political prisoners, and said such allegations were part of a "media attack" to harm its reputation.

Fatah on Thursday accused Hamas of summoning and detaining dozens of its members.

Atef Abu Seif, Fatah's spokesman in Gaza, said some were summoned and interrogated by security forces on a daily basis. On Thursday, security forces closed down an organization in northern Gaza, he added.

Abu Seif said the detentions hampered progress in the long-stalled reconciliation agreement signed in May 2011.

He also called on Hamas to reverse its decision to suspend the work of the Central Elections Commission, which had been due to start updating the voter registry in Gaza on Tuesday.

Hamas said it stopped the commission's work because Hamas members were being arrested in the Fatah-run West Bank.

In their reconciliation treaty, the parties had pledged to stop detaining each other's members.