At least 114 Somalis were killed and many more were missing when tidal waves hit the Horn of Africacountry at the weekend, the United Nations Development Program (UNDP) said Wednesday.

The efforts to assess the full extent of the damage are hampered by the poor transport and communication networks, which also affect the delivery of emergency relief, Elballa Hagona, UNDP's humanitarian coordinator for Somalia, said in a statement.

The tidal waves struck the Somali coast on Sunday as the effectof a series of strong undersea Sumatra earthquakes hit the east African coast.

The earthquake, measuring at 8.7 on the Richter Scale, was registered Sunday, west of the island of Sumatra, triggering tsunamis, or tidal waves, in south and southeast Asia.

At least 80,000 people in affected countries such as Sri Lanka,India, Indonesia, Bangladesh, Maldives, Thailand and Malaysia havebeen killed in the disaster