Ghana has condemned the killing of at least 44 worshippers at a mosque in northeast Nigeria, Sunday.Ghana's Foreign Minister, Ms. Hanna Serwaa Tetteh denounced the killings, and called for rigorous efforts to fight terrorism on the African continent.Ms. Tetteh posted on her handle on social media, twitter: "The killings of 44 people in a mosque in Nigeria is tragic & we mourn with the people of Nigeria. Terrorism should have no place in Africa".Sunday's attack took place in Konduga in Borno state, 35km (22 miles) from the state capital Maiduguri.It is not clear who was responsible for the shootings but reports have linked it to the Islamist group Boko Haram which has killed thousands in northern Nigeria since 2009.